help me 7th grade math please

Help Me 7th Grade Math Please

Answers

Answer 1

Answer: 13.5 ounce bottle for $2.19

a 29.2 ounce bottle for $5.37

The 29.2 ounce bottle is better

Step-by-step explanation:

13.5 ounce bottle for $2.19

a 29.2 ounce bottle for $5.37

find the ratios

13.5/2.19 = $6.16 per unit

29.2/5.37 = $5.44 per unit


Related Questions

NEED HELP FAST! 50 POINTS see the image below

Answers

Answer:

90 in²

Step-by-step explanation:

First,check the figure I provided .

Area of the figure = area1 + area2 + area3 + area4

= (3×2) + (7×7) + (7×2) + (7×6)÷2

= 6 + 49 + 14 + 21

= 90

Gretta is 2 1/2 kilometers tall. Which of the followings is equivalent to 2 1/2 kilometers in meters

Answers

Answer:

Gretta would be 2500 meters tall

Step-by-step explanation:

2km=2000 and the 1/2 would be 1/2=500 so the answer it 2500

Pls mark brainliest!!!!

Consider that x = 1.5 and y = 3. Which statement is true about x + y?

Answers

Answer:

x + y = 4.5

Step-by-step explanation:

x + y = 1.5 + 3 = 4.5

Which of these expressions can be used to calculate the monthly payment for
a 30-year loan for $195,000 at 6.6% interest, compounded monthly?
O A.
$195 000 0.0055 (1+0.0055) 360
(1+0.0055)300 +1
OB.
$195 000 0.0055 (1+0.0055) 360
(1+0.0055) 300-1
O C.
$195 000 0.0055(1-0.0055)300
(1-0.0055) 300-1

Answers

Answer:

B

Step-by-step explanation:

Monthly Payment Formula

[tex]\sf PMT=\dfrac{Pi(1+i)^n}{(1+i)^n-1}[/tex]

where:

PMT = monthly paymentP = loan amounti = interest rate per month (in decimal form)n = term of the loan (in months)

Given:

P = $195,000i = 6.6% = 0.066n = 12 × 30 = 360

[tex]\implies \sf PMT=\dfrac{195000(0.066)(1+0.066)^{360}}{(1+0.066)^{360-1}}[/tex]

if mÃc=170° Find mLB

Answers

Answer:

∠ B = 85°

Step-by-step explanation:

the inscribed angle B is half the measure of its intercepted arc AC , then

∠ B = [tex]\frac{1}{2}[/tex] × 170° = 85°

PLS HELP

Find the value of x and y.

Answers

Answer:

x= 27.71281 = 16√3

y= 13.85641 = 8√3

Step-by-step explanation:

hope it helps :)

John is making apple pies and apple cobblers to sell at the farmer’s market. A pie uses 4 cups of apples and 3 cups of flour. A cobbler uses 2 cups of apples and 3 cups of flour. When John sells the pies and cobblers at the farmer’s market, he will make $3.00 profit per pie and $2.00 profit per cobbler. Let x = the number of pies John makes. Let y = the number of cobblers John makes. Interpret the meaning of the vertex with the maximum profit in context of john’s baking.

Answers

Step-by-step explanation:

there are some pieces of information missing like the price of apples and flour. or the selling prices. or any restrictions like a fixed budget to buy ingredients or how many pies and cobblers he can make in a certain available time.

all we can say based on the given information :

one pie = 4a + 3f (a = apples, f = flour)

one cobbler = 2a + 3f

P(x, y) = 3x + 2y =

= x(selling price - 4a - 3f) + y(selling price - 2a - 3f)

the max. of P(x, y) is the maximum profit by selling pies and cobblers, which is without any further information +infinity.

the more pies and cobblers he sells, the bigger the profit - no limit.

Which answer best describes the complex zeros of the polynomial function? f(x)=x^3−3x^2+16x−48
A The function has three nonreal zeros.
B The function has three real zeros.
C The function has two real zeros and one nonreal zero.
D The function has one real zero and two nonreal zeros.

Answers

Using the Factor Theorem, it is found that the correct option regarding the complex zeros of f(x) is given by:

D The function has one real zero and two nonreal zeros.

What is the Factor Theorem?

The Factor Theorem states that a polynomial function with roots [tex]x_1, x_2, \codts, x_n[/tex] is given by:

[tex]f(x) = a(x - x_1)(x - x_2) \cdots (x - x_n)[/tex]

In which a is the leading coefficient.

In this problem, the function is given by:

f(x) = x³ - 3x² + 16x + 48.

Using a calculator, the roots are given by:

[tex]x_1 = -1.89767, x_2 = 2.44884 + 4.39288i, x_3 = 2.44884 - 4.39288i[/tex]

The first root is real, while the second and third are complex(nonreal), hence option D is correct.

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How would you solve this without a calculator?

Answers

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

Exact Form:

[tex]1351+780\sqrt{3}[/tex]

Decimal Form:

2701.99962990

Thus, 2,701 is your answer

Find the volume of the solid.

Answers

90 cu in.
V= L * W * H
Split shape into two figures

How many liters of 70% alcohol solution and 30% alcohol solution must be mixed to obtain 8 liters of 60% alcohol solution?

a. Complete the table below with the expressions needed to solve this problem. Then solve it in part b.

70% solution 30% solution Final solution
Number of Liters x y
Liters of Alcohol


b. You need
liters of 70% solution and
liters of 30% solution.

Answers

A Hi complete the table shown with an expression need to solve the problem and solve in

NO LINKS!!!! Exponential Growth and Decay Part 2​

Answers

Problem 4

a = 10800 = initial populationb = 1 + r = 1 + (-0.025) = 0.975 is the decay factor

The template of [tex]y = a*b^x[/tex] becomes [tex]y = 10800*0.975^x[/tex] to represent the exponential function.

x = number of years since 2002y = population

We want to know when the population reaches half of 10800, so we want to know when the population is 10800/2 = 5400

Plug in y = 5400 and solve for x.

[tex]y = 10800*0.975^x\\\\5400 = 10800*0.975^x\\\\0.975^x = 5400/10800\\\\0.975^x = 0.5\\\\\log(0.975^x) = \log(0.5)\\\\x\log(0.975) = \log(0.5)\\\\x = \log(0.5)/\log(0.975)\\\\x \approx 27.377851\\\\x \approx 28\\\\[/tex]

I rounded up to the nearest whole number because x = 27 leads to y = 5452, which is not 5400 or smaller.

Luckily, x = 28 leads to y = 5315 which gets over the hurdle of being 5400 or smaller.

Add 28 years onto the starting year 2002 and we get to 2002+28 = 2030

The population reaches half of its original amount in the year 2030.

Answers:The exponential function is [tex]y = 10800*0.975^x[/tex]It takes 28 years to get to half the population. This occurs in the year 2030

============================================================

Problem 5

a = 28750 = starting value for the carb = 1 + r = 1 + (-0.12) = 0.88 = decay factor

If the car loses 12% of its value each year, then it keeps the remaining 88%

Plug those values into [tex]y = a*b^x[/tex].

We find the equation is [tex]y = 28750*0.88^x[/tex] where,

x = number of years since 2012y = car's value

Replace y with 10,000 and solve for x.

[tex]y = 28750*0.88^x\\\\10000 = 28750*0.88^x\\\\0.88^x = 10000/28750\\\\0.88^x \approx 0.347826\\\\\log(0.88^x) \approx \log(0.347826)\\\\x\log(0.88) \approx \log(0.347826)\\\\x \approx \log(0.347826)/\log(0.88)\\\\x \approx 8.261168\\\\x \approx 9\\\\[/tex]

Like in the previous problem, we round up so we clear the hurdle.

Adding 9 years onto 2012 gets us to 2012+9 = 2021

Answers: The function is [tex]y = 28750*0.88^x[/tex]It takes about 9 years, and it occurs in the year 2021

Answer:

Exponential Function

General form of an exponential function: [tex]y=ab^x[/tex]

where:

a is the initial value (y-intercept)b is the base (growth/decay factor) in decimal formx is the independent variabley is the dependent variable

If b > 1 then it is an increasing function

If 0 < b < 1 then it is a decreasing function

Question 4

Given:

a = 10,800b = decrease of 2.5% = 0.975x = time (in years)y = population

As the population is decreasing by 2.5% each year, the population will be 100% - 2.5% = 97.5% of the previous year. Therefore, the base is 0.975.

Final equation:  [tex]\large \text{$ y=10800(0.975)^x $}[/tex]

Half of population:  10800 ÷ 2 = 5400

[tex]\large \begin{aligned}y & =5400\\\implies 10800(0.975)^x & =5400\\(0.975)^x & = \dfrac{5400}{10800}\\(0.975)^x & = 0.5\\\ln (0.975)^x & = \ln 0.5\\x \ln 0.975 & = \ln 0.5\\x & = \dfrac{\ln 0.5}{\ln 0.975}\\x & = 27.377785123\end{aligned}[/tex]

2002 + 27.37785... = 2029.37785...

Therefore, the population will reach half during 2029 (by 2030).

Question 5

Given:

a = 28,750b = decrease of 12% = 0.88x = time (in years)y = value (in dollars)

As the value is decreasing by 12% each year, the value will be 100% - 12% = 88% of the previous year. Therefore, the base is 0.88.

Final equation:  [tex]\large \text {$ y=28750(0.88)^x $}[/tex]

Find when the car is worth $10,000:

[tex]\large \begin{aligned}y & = 10000\\\implies 28750(0.88)^x & = 10000\\(0.88)^x & = \frac{10000}{28750}\\(0.88)^x & = \frac{8}{23}\\\ln (0.88)^x & =\ln \left(\frac{8}{23}\right)\\x \ln (0.88) & =\ln \left(\frac{8}{23}\right)\\x & =\dfrac{\ln \left(\frac{8}{23}\right)}{\ln (0.88)}\\x & = 8.26116578\end{aligned}[/tex]

2012 + 8.26116578.. = 2020.26116578..

Therefore, the value of the car will reach $10,000 during 2020 (by 2021).

Laurie says that 2+3 x 2+3= 13. Ray says that 2+3 x 2+3= 11. Who is correct

Answers

Answer:

Ray

Step-by-step explanation:

Ray is correct . Have a nice day :)

somebody helpppp i beg

Answers

root*324=18

441=21

529=23

hope it helps

please mark as brainliest

Convert 4 3/5 to a fraction greater than one

Answers

Answer:

23/5

Step-by-step explanation:

* means multiply

4 3/5

5 * 4 = 20

20 + 3 = 23

23/5

Answer:

[tex]\frac{23}{5}[/tex]

Step-by-step explanation:

The type of fraction we are dealing with is called a mixed fraction

In order to convert this fraction into a fraction greater than 1, we will have to convert it into an improper fraction

So we keep the denominator

Multiply the whole number by the denominator and add that to the numerator

The image shows a circle centered at point O angle AOB Measures at 42 degrees.

What is the Measure of the angle acb explain your reasoning

Answers

The measure of angle ACB for circle centered at point O is 21°

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

∠AOB = 2 * ∠ACB (angle at center is twice the angle at circumference)

42 = 2 * ∠ACB

∠ACB = 21°

The measure of angle ACB for circle centered at point O is 21°

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The area of a rectangle is 24 cm² and the perimeter is 22 cm .What is the lenth and width of this rectangle?

Answers

Step-by-step explanation:

length × width = 24

2×length + 2×width = 22

length + width = 11

length = 11 - width

this we use in the first equation again :

(11 - width) × width = 24

11×width - width² = 24

width² - 11×width + 24 = 0

the general solution to an quadratic equation :

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

x = width

a = 1

b = -11

c = 24

and so we get

width = (11 ± sqrt((-11)² - 4×1×24))/2×1) =

= (11 ± sqrt(11² - 96))/2 = (11 ± sqrt(121-96))/2 =

= (11 ± sqrt(25))/2 = (11 ± 5)/2

width1 = (11 + 5)/2 = 16/2 = 8 cm

width2 = (11 - 5)/2 = 6/2 = 3 cm

and teenaged to this is then

length1 = 11 - width1 = 11 - 8 = 3 cm

length2 = 11 - width2 = 11 - 3 = 8 cm

so, it is clear. one dimension has to be 8 cm, and the other one 3 cm. it does not matter which is which.

7) What is the area of the figure below?
12 cm
13 cm
20 cm
21 cm

Answers

Answer:

65,520

Step-by-step explanation:

12x13x20x21=64,520

Please help with this! I have to reflect over the x axis by the way

Answers

Answer:

T' = (-8, 8)

U' = (2, 8)

V' = (-8, 7)

Step-by-step explanation:

reflection over x axis means we change the sign of the y coordinate and nothing else

T = (-8, -8)

y coordinate = -8, change the sign to get 8

T' is thus (-8, 8)

U = (2, -8)

y coordinate = -8, y' = 8

U' = (2, 8)

V = (-8, -7)

y' = 7

V' = (-8, 7)

Identify the 17th term in the arithmetic sequence.
a1 = 11, d = −2

Answers

The arithmetic sequence has a common difference, and a first term and the 17th term in the arithmetic sequence is -21

How to determine the 17th term?

The given parameters are:

First term, a = 11Common difference, d = -2

The nth term of an arithmetic progression is:

Tn = a + (n - 1)d

So, we have:

T17 = a + 16d

Substitute the given values

T17 = 11 - 16 * 2

Evaluate

T17 = -21

Hence, the 17th term in the arithmetic sequence is -21

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Question 2 of 10
Which of the following geometric objects occupy one dimension?
Check all that apply.
A. Line
B. Triangle
C. Plane
D. Segment
E. Ray
F. Point

Answers

The answer is D Segment I just did a test with that’s question
Answer:

A. Line

D. Segment

E. Ray

Step-by-step explanation:

Math dimensions include length, width, and height (in that order). The dimension that an object occupies is dependent on how many different measurements, aka dimensions, an object has.

0th Dimension

The first dimension is actually the zeroth dimension. This dimension includes objects that do not have any measurements. A point does not have a length because it only occupies one spot on a plane.

The 0th dimension includes:

Point

1st Dimension

The next dimension, the 1st dimension, has only length. This means the object can travel across the x-axis, but it can only go in one direction.

The 1st dimension includes:

LineSegementRay

2nd Dimension

For this question, the last dimension is the 2nd dimension. The 2nd dimension has both length and width. This means that the object occupies both the x and y-axis.

The 2nd dimension includes:

TrianglePlane

3rd Dimension

The 3rd dimension is not included in the question or the answer choices but is still important. The 3rd dimension has length, width, and height. This occupies the x, y, and z-axis and cannot be graphed on a regular geometric plane. The 3rd dimension is graphed in a geometric space.

The 3rd dimension includes:

CubePrism

Can some one help me???

Answers

The unknown sides of the right angle triangle using trigonometric ratios are as follows;

PR = 13.2 units

RQ = 17.6 units

What is a right angle triangle?

A right angle triangle is a triangle that has one of its angles as 90 degrees.

The sides of the triangle can be found using trigonometric ratios.

Therefore,

sin 37° = opposite / hypotenuse

sin 37° = PR / 22

cross multiply

PR = 22 sin 37

PR = 22 × 0.60181502315

PR = 13.2399305093

PR = 13.2 units

cos 37 = adjacent / hypotenuse

cos 37 = RQ / 22

RQ = 22 cos 37

RQ = 17.569981221

RQ = 17.6 units

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What is the value of x in the equation 5x+ 3 = 4x?
A.-3
B.- 1/3
C.1/3
D.3

Answers

Answer:

-3

Step-by-step explanation:

5•-3=-15

4•-3=-12

-15+3=-12

-3 because I said it was

rotate the figure 90 degrees clockwise then translate 4 units left

Answers

Answer:

If I am not mistaken, the new figure will be here (view attachment, bright blue figure is the new transformation)

Answer:

For each of the following equations determine the output values Corresponding to the input value

(-2;-1;0;1;2;3)

An electric bulb is sold in a box measuring 5 cm by 4 cm by 4 cm. If the shopkeeper receives them in a carton measuring 50 cm by 20 cm by 20 cm, how many bulbs would be packed in one carton ?​

Answers

Answer:

250

Step-by-step explanation:

Bulb box and carton both are of cuboidal shape.

For bulb box the dimensions are:

l = 5 cm, w = 4 cm, h = 4 cm

[tex]V_{Bulb\: box} =lwh[/tex]

[tex]\implies V_{Bulb\: box} =5(4)(4)[/tex]

[tex]\implies V_{Bulb\: box} =80\: cm^3[/tex]

For Carton the dimensions are:

l = 50 cm, w = 20 cm, h = 20 cm

[tex]V_{Carton} =lwh[/tex]

[tex]\implies V_{Carton} =50(20)(20)[/tex]

[tex]\implies V_{Bulb\: box} =20,000\: cm^3[/tex]

To find the number of bulbs packed in the carton, divide the [tex]V_{Carton}[/tex] by [tex] V_{Bulb\: box}[/tex]

[tex] Number \:of \:bulbs =\frac{V_{Carton}}{V_{Bulb\: box}}[/tex]

[tex] \implies Number \:of \:bulbs =\frac{20,000}{80}[/tex]

[tex] \implies Number \:of \:bulbs = 250[/tex]

So, 250 bulbs will be packed in one carton.

You are a salesman for company Z. Total sales for company Z last year were
R900 000,00. You were responsible for obtaining R300 000,00 worth of these
sales. As a fraction, what was your share of the total sales?

Answers

Answer:

1/3 or 33.33%

Step-by-step explanation:

30000000/90000000

PLEASE HELP ME! Find the 10th term of the geometric sequence that has a1 = 400 and A2 = 200.​

Answers

Answer:

I believe the answer is 0.7813

Step-by-step explanation:

Find the difference between 400 and 200, as they are first and second terms. This is going to be 0.5 since it is being divided.

The formula is: a∨n=a∨1(r)^(n-1)

n= the number of the sequence you are looking for

r=0.5

a∨1=400

a∨2=200

400(0.5)^(10-1)

Some of the most important nutrients in the ocean include:
A. Nitrates, carbonic acid, and oxygen.
B. Carbon dioxide, oil, and gold.
C. Phosphate, phytoplankton, and potassium.
D. Phosphates, nitrates, and carbon.

Answers

Answer:

D one is the answer

Step-by-step explanation:

MARKING BRAINLEST IF CORRECT
Solve for x.
66
6
7
110

Answers

Answer:

x =6

Step-by-step explanation:

17x + 8 + 66 + 74 +110 = 360

17x + 258 =360

17x = 360 -258

17x =102

x =6

Apply angle sum property

17x+8+66+74+110=36017x+258=36017x=102x=6

Juanita must buy 50 plastic ducks for a game at the carnival. The ducks are sold in packages of 6. What is the LEAST number of packages Juanita should buy?

Answers

Answer:

9

Step-by-step explanation:

The least number of packages she should buy is 9 because 9 x 6 is 54 so she would have 4 extra ducks but she would still have enough for the carnival game

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