7th grade math help me plzzzz

7th Grade Math Help Me Plzzzz

Answers

Answer 1

Answer:

a) -16

b)7

c) -4

d) 9

Step-by-step explanation:

by solving


Related Questions

What are the total expenses for a month if someone spends $900 on rent,
$290 on groceries, $55 for electric, $30 for water, $70 for car insurance,
$145 on entertainment, $87 on gas, $40 on clothes, and $56 on sports.

Answers

Answer:

$1673

Step-by-step explanation:

$900+$290+$55+$30+$70+$145+$87+$40+$56=$1673

the scale on the map is 5cm : 1 km.

Answers

Answer:

lol do you need help with anything

Step-by-step explanation:

So do you need help or ..

x-3/7=x+1/32 solve the equations

Answers

Answer:

invalid

Step-by-step explanation:

combine like terms

invalid

0 is not equal to anything

Find the surface area of a rectangular solid with the given dimensions: length 25 feet, width 7 feet, height 10 feet. Give your answer without units.

Answers

Answer: 990

Step-by-step explanation:

SA = 2LH + 2LW + 2WH

SA= 2(25•10) + 2(25•7) + 2(7•10)

SA= 990

The surface area of a rectangular solid will be 990 square feet.

What is the surface area of the rectangular prism?

Let the prism with a length of L, a width of W, and a height of H. Then the surface area of the prism is given as

SA = 2(LW + WH + HL)

We have length 25 feet, width 7 feet, and height 10 feet.

SA = 2(25 x 7 + 7 x 10 + 10 x 25)

SA = 2(175 + 70 + 250)

SA = 2(495)

SA = 990 square feet

More about the surface area of the rectangular prism link is given below.

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Triangle ABC, in the coordinate plane, is reflected over the -axis to form shown on the coordinate plane below.

Answers

Answer:

I think it’s C

Step-by-step explanation:

Answer: (x,y) to (x,-y)

Step-by-step explanation:

To find the quotient of 8 divided by one-third, multiply 8 by
One-eighth.
One-third.
3.
8.

Answers

Answer:

The answer is 3

Step-by-step explanation:

To find the quotient of 8 divided by 1/3 multiply 8 by

8/1 divided by 1/3

8 x 3

-------

1 x 1

=

24/1

=

24

The quotient of 8 divided by one-third is same as multiply 8 by 3.

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications.

For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

We have to given that;

The quotient of 8 divided by one-third.

Now, We get;

The quotient of 8 divided by one-third.

⇒ 8 ÷ 1/3

⇒ 8 × 3

Thus, It is clear from the above steps that dividing 8 by 1/3 is equivalent to multiplying 8 by 3.

Therefore, Multiplying 8 by 3 will give the same quotient.

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Given a normal distribution with a mean of 125 and a standard deviation of 14, what percentage of values is within the interval 111 to 139?
A. 32%
B. 50%
C. 68%
D. 95%
E. 99.7%

Answers

Answer:68%

Step-by-step explanation:

just took this test

The percentage of values is within the interval 111 to 139 will be "68%".

Probability

According to the question,

Mean = 125

Standard deviation = 14

Let,

The random variable be "X".

Now, the probability:

→ P(111 < X < 139) = P (111 - 125 < X - 125 < 139 - 125)

                           = P(-14 < X - 125 < 14)

                           = P(-[tex]\frac{14}{14}[/tex] < [tex]\frac{(X-125)}{14}[/tex] < [tex]\frac{14}{14}[/tex])

                           = P(-1 < Z < 1)

When, Distribution function "[tex]\phi[/tex]" now,

= [tex]\phi[/tex](1) - [tex]\phi[/tex](-1)

= [tex]\phi[/tex](1) - 1 + [tex]\phi[/tex](1)

= 2 × [tex]\phi[/tex](1) - 1

= 2 × 0.8413 -1

= 1.6826 - 1

= 0.6826 or,

= 68%

Thus the above answer i.e., "option C" is correct.

Find out more information about probability here:

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8/9 - 1/3 equals what​

Answers

Answer:

5/9

Step-by-step explanation:

Answer:

5/9

Step-by-step explanation:

use a calculator it really helps:))

Anna can walk 10 miles in 4 hours. At this rate, how many minutes does it take her to walk one mile?

Answers

Answer:

0.066666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666

Step-by-step explanation:

4 divided by 60=that

pls help this is due today and need help please. ​

Answers

Answer:

The answer is 45.9 L

Step-by-step explanation:

1. Multiply

25.5L x 1.8L

2. Solve

25.5 x 1.8= 45.9L

triangle DEF is a right triangle and the of angle D is 28° what are the measures of the other two angles if the measures of angle E is greater than the measure of angle F

Answers

Answer:

A possiable answer to solve this could be E is 86 and F is 66

Step-by-step explanation:

All triangles have a 180 degree to them. I just subtracted 28 from 180. Diveded that by 2 then gave one ten degrees more and the other has ten degrees less

The measure of the angle E will be 90° and the measure of the angle F will be 62°.

What is the triangle?

A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.

The triangle DEF is a right triangle and the of angle D is 28°.

In a right-angle triangle, one angle will be 90°.

If the measure of angle E is greater than the measure of angle F. Then the angle E will be 90°. Then the measure of the angle F will be given as,

We know that angle D and angle F are complementary. Then the equation is given as,

∠F + ∠D = 90°

∠F + 28° = 90°

∠F = 62°

The measure of the angle E will be 90° and the measure of the angle F will be 62°.

More about the triangle link is given below.

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Help me out fast on this question.

Answers

The third one 15.5x2.3

Garrison deposited $500 in an account that earns 5%
annual interest compounded annually. If he makes no
withdrawals or deposits, how much interest will the
account earn after 4 years?

Answers

Answer:

$107.75

Step-by-step explanation:

mark me brainliestt please

The Amount will be $607.75 and Interest is $ 107.75 after 4 years.

What is Compound Interest?

In order to compute compound interest, multiply the principle of the original loan by the annual interest rate multiplied by the number of compound periods minus one.

The interest you earn on interest is known as compound interest.

Given:

Garrison deposited $500.

Interest = 5%

Time= 4 years.

First, convert R as a percent to r as a decimal

r = R/100

r = 5/100

r = 0.05 rate per year,

Then solve the equation for A

A = P[tex](1 + r/n)^{nt[/tex]

A = 500.00[tex](1 + 0.05/1)^{(1)(4)[/tex]

A = 500.00[tex](1 + 0.05)^{(4)[/tex]

A = $607.75

and, I = A- P

I = 607. 75 - 500

I= $107.5

Learn more about compound Interest here:

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As a fundraiser for a band trip, the Edison Middle School Band plans to sell hats that feature the

school logo. The company producing the hats will charge the band $240 for the design and set-up

costs, plus $8 per hat. The band members have decided to sell the hats for $12 each.

a. Write an equation that represents the production cost in dollars to make the hats. Describe

what your variables represent.

b. Write an equation that represents the amount of money the band will make from selling the

hats. Describe at your variables represent

Answers

Answer:

a. c=240+8x

b. e=12x

Step-by-step explanation:

a. The equation would indicate that the production cost in dollars is equal to the design and set-up cost plus the cost per hat for the number of hats produced:

c=240+8x, where c is the production cost in dollars and x is the number of hats produced.

b. The equation would indicate that the amount of money the band will make from selling the  hats is equal to the price per hat for the number of hats sold:

e=12x, where e is the amount of money the band will make from selling the  hats and x is the number of hats sold.

Point G is on line segment F H ‾ FH . Given F G = 5 x + 2 , FG=5x+2, G H = 3 x − 1 , GH=3x−1, and F H = 9 , FH=9, determine the numerical length of F G ‾ . FG .

Answers

Answer:

FG = 7

Step-by-step explanation:

From the question, we are given:

FG=5x+2, GH=3x−1, and F H = 9

FG + GH = FH

5x + 2 + 3x - 1 = 9

5x + 3x + 2 - 1 = 9

8x + 1 = 9

8x = 9 - 1

8x = 8

x = 8/8

x =1

We are determining the numerical length of FG

FG= 5x + 2

FG = 5(1) + 2

FG = 5 + 2

FG = 7

A worker at one farm is paid $486 for the week, plus $0.03 for every pound
of apples she picks. At another farm, a worker is paid $490 for the week, plus
$0.02 for every pound of apples. For how many pounds of apples are the workers
paid the same amount?

Answers

Answer:sorry this probably is t the most helpful but the closest i could get was 399 lbs. it’s is st$497.7 for one and $$497.8.

Step-by-step explanation:


2x + 3y- z = 13
3x - 4y+z = -2
x + 2y + 2z= 21

Answers

What’s the question ?

Canoe rentals cost $10 plus $4 per hour. A group of friends rent 3 canoes for 3 hours. what is their total cost.

Answers

Answer:

42

Step-by-step explanation:

Answer:

$42

Step-by-step explanation:

$10 * 3 canoes = $30

$4 * 3 hours = $12

30 + 12 = $42

Kara and Nathan participated in a 60-minute maze race.


Kara:


32 minutes


Nathan:


40 minutes


Part B


Is the relationship in Part A rational or irrational? Justify your answer.


Select the answers that complete the sentences.


Hint(s): A rational number can be written as a ratio of two integers.


Can the times for each be written as integers?


The relationship is


The number


be expressed as a ratio of two integers.


1 rational


11 irrational


can


I cannot

Answers

Answer:

A) There is a rational relationship, B) Given ratio is not an integer.

Step-by-step explanation:

A) Is the relationship in Part A rational or irrational? Justifty your answer.

From Mathematics we remember that a rational number can formed by dividing a natural number by another natural number. Since Kara and Nathan had two natural numbers {32, 40} as their times of participation in the maze race, ratio between those times can be considered a rational number.

Hence, there is a rational relationship.

B) Can the times for each be written as integers?

The times represents the ratio of the upper number (40) to the lower number (32), the "times" can be written as integer if and only if denominator is equal to 1 after simplifying the ratio. That is:

[tex]x = \frac{40}{32}[/tex]

[tex]x = \frac{20}{16}[/tex]

[tex]x = \frac{10}{8}[/tex]

[tex]x = \frac{5}{4}[/tex]

In consequence, this ratio does not represent an integer. ([tex]1.25=\frac{5}{4}[/tex])

A line passes through (2, 7) and has a slope of -4. What is its equation in point-slope form?


Sorry I'm bad

Answers

Answer:

y= (-4/1)x -1

Step-by-step explanation:

A catering company loses $110 as a result of a delay.
The 5 owners of the company must share the loss equally.
Which integer represents the change in profit for each owner?

Answers

Answer:

-$22.00

Step-by-step explanation:

What is the slope of the line that passes through the points (-3, -3)(−3,−3) and (-9, 5) ?(−9,5)? Write your answer in simplest form.

Answers

Answer

-4/3

Step-by-step explanation:

I need to know how to write a equation number sentence for my time traveled from 2020 to 2000

Answers

Answer:

explain further or send a picture of what you mean and then I can help you

How much smaller is x−3 than x+4?

Answers

Answer: bsf google

Step-by-step explanation: go to google look it up and find the answer

Answer:

x-3

Step-by-step explanation:

It's x-3 because if you put 12-3 it will be 9 but if you add x+4 it will be 16

Can any one help me?

Answers

8x + 5 + 4x - 17 = 180

12x - 12 = 180

12x = 192

x = 16

The value of x is 16.
16
Explanation idkkkkk1

Determine the domain :y=|x+5|+1

Answers

Answer:

B im pretty sure

Step-by-step explanation:

Answer:

Domain:  ( − ∞ , ∞ ) , { x | x ∈ R }

Range:  [ 1 , ∞ ) , { y | y ≥ 1 }

Step-by-step explanation:

ind the domain by finding where the equation is defined. The range is the set of values that correspond with the domain.

f(x)=3x+1 what is the value of f(-2/3)

Answers

Answer:

f = -1

Step-by-step explanation:

f(x) = 3x + 1

f(-2/3) = 3(-2/3) + 1

f = -2 + 1

f = -1

Answer:

= -2f/3

Step-by-step explanation:

need help really please​

Answers

Answer:

the answer is b. I need more words to submit this

Answer is 9, 18, and 27

Michael says that the difference between dani’s and raj’s age is proportional to dani’s age. Is Michael correct ?

Answers

Answer:

No Michael is not correct.

Step-by-step explanation:

You want the difference between the ages.

Hope I helped.

Answer:

What is their ages?

Step-by-step explanation:

say if Dani is 20 and Raj is 5 then yes, they are proportional

ples help!!! andrew can frame 9 pictures each day. he has an order for 108 pictures. how many days will it take him to complete the order

Answers

Answer:

23

Step-by-step explanation:

Answer:

12 days.

Step-by-step explanation:

108 divided by 9!

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