Answer:
2z+7
Step-by-step explanation:
2*z+7
2z+7
HELP I NEED HELP ASAP
A. A student’s math grade decreases approximately 3 points for every 10 minutes of watching television.
B. A student watches approximately 3 minutes less television for every 10 points gained in their math grade.
C. A student watches approximately 3 minutes more television for every 10 points gained in their math grade.
D. A student’s math grade increases approximately 3 points every 10 minutes of watching television.
Answer:
B. A student watches approximately 3 minutes less television for every 10 points gained in their math grade.
I'll give brainliest.
Answer:
is this algebra
Step-by-step explanation:
Answer:
1.)
A.) The graph does represent a proportional relationship because if you calculate the slope, it's 2/3, which is consistent throughout the line and with the given points.
Slope calculation:
[tex]\frac{y2-y1}{x2-x1} \\\\\frac{6-4}{9-6} \\\\\frac{2}{3}[/tex]
B.) The coordinate (0,0) represents that no laps have been completed nor has the time started
C.) The coordinate I chose is (6,4). It represents that 4 laps were completed in 6 minutes
2.) The values to represent a proportional relationship because once calculating the slope, which is 13, you can try it with other points. Even though there's some values missing between (6,78) and (10,130), the slope remains the same.
Slope Calculation:
[tex]\frac{y2-y1}{x2-x1} \\\\\frac{130-39}{10-3} \\\\\frac{91}{7} \\\\\frac{13}{1}[/tex]
3.)
A.) The constant of proportionality is 7/4 or 1.75
B.) y = 7/4x
4.) She'll run 8 miles because since 3/4 of an hour equates to 6 miles and there's 1/4 missing, 2 miles is 1/3 of 6 miles and 1/4 is 1/3 of 3/4 , so 1/4+1/4+1/4 = 3/4. She can run 8 miles (4*2) in 1 hour (4*1/4 hour)
If 0 = 1/4 x 10 + b and 20 = 1/4 x 90 + b, what is b?
(Hint: both values of b are the same)
Answer:
B= -5/2
Step-by-step explanation:
i added the screen shot of the step by step solution , its hard to do this on a laptop
*mark brainlest*
Determine the value of x and y in the following systems of equations. 3x+y=9 x-y=-1
Answer:
x=2, y=3. (2, 3).
Step-by-step explanation:
3x+y=9
x-y=-1
-------------
4x=8
x=8/4=2
2-y=-1
y=2-(-1)=2+1=3
PLEASE HELP ME PLEASE
Answer: Your answer will be 1/2
a worker takes 1 week to fill 9 crates of squash. at this rate, how long will it take to fill 720 crates
2 points
Daniel had $25 to spend at the fair. If it costs $3 per ride plus $4 for the
admission to the fair, Write and solve an inequality to find the maximum
number of rides Daniel can go on? *
In inequalities
Answer:
well the answer is 7 rides
Step-by-step explanation:
25 - 4
=21
21÷3
=7
(p.s working might not be in the right format but its right)
1
HELP
A rectangular prism with a volume of 4 cubic units is filled with cubes with side lengths of
unit.
1
How many
unit cubes does it take to fill the prism?
3
Answer:
Answer. Each cube with side lengths of 1/4 have a volume of (1/4)3 which means each cube's volume is 0.015625 cubic units.
Step-by-step explanation:
Answer. Each cube with side lengths of 1/4 have a volume of (1/4)3 which means each cube's volume is 0.015625 cubic units.
A company finds that if it charges e dollars for a cell phone, it can expect to sell 1,000 - 2x phones. The company
uses the function - defined by r(t) = < (1,000 – 22) to model the expected revenue, in dollars, from selling cell
phones at dollars each.
Use graphing technology to graph the function r. At what price should the company sell their phones to get the
maximum revenue? Explain your reasoning.
Answer: the company should sell there phones for 250
Step-by-step explanation: took the test
PLEASE HELP! WILL GIVE BRAINLIEST!
Solve for x
Answer:
It would be C , 7 root 2
Step-by-step explanation:
you would have to find the Sin of 45. So you set up a proportion ( you can do this on a calculator)
sin 45=7/x and then calculate that and solve.
If you dont have a calc then the sin of 45 is 1/root2
Here are two rectangles.
6 cm
9 cm
8 cm
12 cm
Complete this sentence.
The two rectangles are similar and the scale factor is
Answer:
[tex] \boxed {\frac{2}{3}} [/tex]
Step-by-step explanation:
The two rectangles are similar and the scale factor is [tex] \boxed {\frac{2}{3}} [/tex]
A truck that is 10 ft. by 12 ft. by 8 ft. carries cube shaped boxes that have a
length of 1.5 ft. How many of these boxes can this truck hold?
Answer:
284.4
Step-by-step explanation:
Divide all numbers by 1.5. example: (10)1.5(12)1.5(81.5= 284.444444 but I rounded it to 284. You're welcome
284 boxes in the shape of the cubes can be fitted in the truck.
If a truck is fitted fully with the cubes, volume of the truck will be equal to the volume of cubes to be fitted.
Dimensions of the truck given in the question,
Length = 10 feet, width = 12 feet and height = 8 feetSince, volume of a cuboid (shape of a truck) is given by the expression,
Volume = Length × Width × Height
Therefore, volume of the truck = 10 × 12 × 8
= 960 feet³
Volume of a cube is given by the expression,
Volume = (side)³
Therefore, volume of the cube with side length 1.5 feet will be,
Volume of a cube = (1.5)³
= 3.375 cubic feet
Let the number of cubes fitted in the truck = x
Therefore, volume of 'x' cubes = (3.375x) feet³
Since, volume of the truck = Volume of the cubes fitted
3.375x = 960
x = [tex]\frac{960}{3.375}[/tex]
x = 284.44
x ≈ 284
Therefore, 284 boxes in the shape of the cubes can be fitted in the truck.
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The park i 45 feet long . How long is park yard ? (1yard=3feet)
Answer:
135 yards
Step-by-step explanation:
There are 135 yards in 45 feet.
Our information:
The park is 45 feet long
There is (3 feet= 1 yard)
Since there is 3 feet in 1 yard. You have to multiply 45 x 3.
So, The answer is 135 yards.
Anyone know the answer?!
Answer:
C
Step-by-step explanation:
sorry if its wrong
answer and how so? have a good day/night/afternoonnn
Answer:
y < 1/4x + 6
Step-by-step explanation:
So the first thing I found was the slope so using rise over run you could see it was going down one and to the right 4 times which gave me 1/4 for the slope, then i needed to find the y intercept which was positive 6 I got I knew it was less than because it is shaded under the line and i knew it was less than opposed to less then or equal to because its a dotted line.
So to make the equation we first do y = slope (x) + y intercept
(if your y intercept was -6 you would change the + to a -)
our slope is 1/4 so y = 1/4x
our y intercept is 6 so we get y = 1/4x + 6
Hope this was helpful
who wants to be the brainiest? it's ok if you don't know the answer its hard ;(
Answer:
What's the question I'll do my best to help :)
Step-by-step explanation:
Answer:
wheres the question?
Step-by-step explanation:
Lincoln invested $440 in an account paying an interest rate of 5\tfrac{7}{8}5 8 7 % compounded continuously. Robert invested $440 in an account paying an interest rate of 5\tfrac{1}{2}5 2 1 % compounded daily. After 11 years, how much more money would Lincoln have in his account than Robert, to the nearest dollar?
Answer: $34
Step-by-step explanation:
After 11 years,188.76 more money would Lincoln have in his account than Robert
What is Percentage?percentage, a relative value indicating hundredth parts of any quantity.
Given,
Lincoln invested $440 in an account paying an interest rate of 7 % compounded continuously.
Robert invested $440 in an account paying an interest rate of 5 %.
We need to find how much more money would Lincoln have in his account than Robert in 11 years.
[tex]A=Pe^{rt}[/tex]
For Lincoln:
P=440,
r=7%=0.07
t=11
A=440e⁰⁰⁷ˣ¹¹
A=440e⁰⁷⁷
A=949.96
For Robert,
P=440,
r=5%=0.05
A=440e⁰⁰⁵ˣ¹¹
A=440e⁰⁵⁵
A=761.2
Now find the difference of Albert and Robert money
949.96-761.2
188.76
Hence, After 11 years,188.76 more money would Lincoln have in his account than Robert
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Which of the following are solutions to the equation below?
Check all that apply.
9x2 - 2x + 25 = 8x2 + 8x
A.25
B.4
C.5
D.-5
E.-3
F.6
Answer:
C. 5Step-by-step explanation:
[tex]9x^2 - 2x + 25 = 8x^2 + 8x\\\\9x^2 - 2x + 25 - 8x^2 - 8x = 0\\\\x^2-10x+25=0\\\\x^2-2\cdot x\cdot5+5^2=0\\\\(x-5)^2=0\\\\x-5=0\\\\x=5[/tex]
Please help due in 10 minutes!!!!!!!
Answer:
23.42 ft is the perimeter of the hole that should be cut in the wall.
I need help with this question plsss
Thx
Answer:
4
Step-by-step explanation:
The sum of two integers is 21. Fifteen less than double the square of the smaller integer is equal to the larger
integer. What are the two numbers?
Answer:
2x^2+x-36=0
(4,0)
2*4^2+4-15=21
Step-by-step explanation:
The addition is one of the four fundamental mathematical operations. The two integers are 4 and 17.
What is Addition?The addition is one of the four fundamental mathematical operations, the others being subtraction, multiplication, and division. When two whole numbers are added together, the total quantity or sum of those values is obtained.
Let the two unknown integers be represented by x and y, where x
Given that The sum of two integers is 21. Therefore, we can write,
x + y = 21
y = 21 - x
Also, Fifteen less than double the square of the smaller integer is equal to the larger integer.
2(x²) - 15 = y
Substitute the value of y from the first equation,
2(x²) - 15 = 21 - x
2x² - 15 = 21 - x
2x² + x - 15 - 21 = 0
2x² + x - 36 = 0
2x² + 9x - 8x - 36 = 0
x(2x + 9) -4(2x + 9) = 0
(x-4)(2x+9) = 0
x = (-9/2), 4
Since it is given that the number are integers, therefore, the only option is 4.
Further, the two integers are,
x = 4
y = 21 - x = 21 - 4 = 17
Hence, the two integers are 4 and 17.
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A color printer prints 24 pages in 9 minutes. How many minutes does it take per page?
Answer:
it gets almost 3 pages but it gets 2 pages per minute
Step-by-step explanation:
ANSWER ALL QUESTIONS PLZ:
At the park, the ratio of birds to squirrels was 4 to 5. If there were 90 birds and
squirrels at the park altogether, how many were squirrels?
Sally found that the 12 inches from her wrist to her should was 1/5 of her total height.
What was Sally’s total height in inches?
The vertices of ∆ABC are A (0,0), B (6,0) and C (6,6). Draw the triangle and its
image ∆ A’B’C’ translated to the right 3 units. What are the coordinates of the
vertices of ∆ A’B’C’?
Answer:
50 squirrels, 60 inches, A'(3,0), B'(9,0), C'(9,6)
Step-by-step explanation:
Given that the ratio of birds to squirrels is 4:5 and there are 90 altogether, define a variable [tex]x[/tex], and [tex]4x + 5x = 90[/tex], and [tex]x = 10[/tex]. Since squirrels are the [tex]5x[/tex] part, [tex]5\cdot10 = 50[/tex] squirrels.
1/5 of her total height is 12 so let's say her total height is [tex]h[/tex] and [tex]\frac{1}{5}h = 12[/tex].
Solve for [tex]h[/tex] to get 60 inches.
Translating this triangle to the right 3 units just means adding 3 to all the x coordinates of the vertices. This gives you A'(3,0), B'(9,0), C'(9,6).
two Friends are collecting pop can tabs. Natasha has 250 more pop can tabs then Christine. together they have collected 880 pop can tabs. How many pop can tabs has each friend collected 
Answer: 2393
Step-by-step explanation:
Angle is 51° what's angle x
Answer:
129
Step-by-step explanation:
The expression 16t2 represents the distance in feet an object falls after t seconds. The
object is dropped from a height of 906 feet.
Write an expression representing the height of the object in feet t seconds
after it is dropped.
0906 - 16t^2
906 + 16t^2
0906 (16t^2)
0906/16t^2
Answer:
824 feet
that is becuase the greastist common factor adds up to that
1. 64 feet
2. 842 feet
3. y = 906 - 16t^2
What is the measure of the exterior angle
whose remote interior angles measure
52 and 72
Answer:
i really dont know
Step-by-step explanation:
A science fair has 180 entries. There
are 72 entries from sixth grade
students.
Answer:
40%
Step-by-step explanation:
Total entries= 180
Entries from 6th grade= 72
Percentage = 72/ 180 x 100= 40%
Hope its right!!!
A train is traveling at 30 miles per hour.
How long will it take the train to travel 180 miles?
FREE BRAINLIEST!!!
Answer:
Six hours
Step-by-step explanation:
Answer:
6 Hours
Step-by-step explanation:
If the train travels at 30mph for 6 hours it will have traveled 180 miles.
30 • 6 = 180
I hope this helps
The hypotenuse of a right-angled triangle is 61 cm. If one of the remaining two sides is
11cm, find the length of other side.
Answer:
60cm
Step-by-step explanation:
the length of other side = sqrt (square root) hypotenuse^2 - the length of thrid side^3 = sqrt 61^2 - 11^2 = sqrt 60^2 = 60