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NARA [144]
4 years ago
6

It takes 40 minutes for eight people to paint four walls how many minutes does it takes 10 people to paint seven walls

Mathematics
1 answer:
sasho [114]4 years ago
8 0
8r(40)=4

r=1/80  that is the rate for each person...

10rt=7  using r we found before

10(1/80)t=7

t/8=7

t=56 minutes.
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A rectangular prism has a length that is 3 inches shorter than the height and a width that is 5 inches longer than the height. F
LUCKY_DIMON [66]

An equation for the volume of the prism as a function of the height is Volume = h³ + 2h² - 15h.

  • We are given a rectangular prism.
  • A rectangular prism is no different than a cuboid.
  • Let the height of the rectangular prism be "h".
  • The length of the rectangular prism is "h-3".
  • The width of the rectangular prism is "h+5".
  • The volume of the rectangular prism is the same as that of the cuboid.
  • The volume of the rectangular prism is the product of its length, its width, and its height.
  • The volume of the rectangular prism is (h - 3)*(h + 5)*h.
  • An equation for the volume of the prism as a function of the height is :
  • Volume = (h - 3)*(h + 5)*h
  • Volume = (h² + 2h - 15)*h
  • Volume = h³ + 2h² - 15h

To learn more about prism, visit :

brainly.com/question/12649592

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5 0
1 year ago
I do not get what this means
gladu [14]
This means that with certain types of data, mean, median, or mode may be more effective for analysis. 
6 0
3 years ago
Ellie has 9 weeks to finish an 11 part project. How many parts does Ellie have to do each week?
netineya [11]
11 divided by 9 is 1.2 repeating so Ellie will have to do about 1.3 parts a week
5 0
3 years ago
Write the first three terms in the following sequences. Identify them as arithmetic or geometric
vaieri [72.5K]

Answer:

A(1)=9

A(2)=4

A(3)=-1

Arithmetic sequence

Step-by-step explanation:

We are given that

A(n+1)=A(n)-5 \;for\;n\geq 1 A(1)=9

We have to find first three terms and identify the sequence is geometric or arithmetic.

Substitute n=1

Then, we get

A(2)=A(1)-5=9-5=4

For n=2

A(3)=A(2)-5=4-5=-1

For n=3

A(4)=-1-5=-6

d_1=A_2-A_1=4-9=-5

d_2=A_3-A_2=-1-4=-5

d_3=A_4-A_3=-6+1=-5

d_1=d_2=d_3=-5

When the difference of consecutive terms are constant then the sequence is arithmetic sequence.

Therefore, given sequence is arithmetic sequence.

8 0
3 years ago
Translate 2/3 y − 9 < y + 1 into a sentence
erma4kov [3.2K]

Answer: Nine less than two thirds of a quantity is smaller than one more than that same quantity.

4 0
3 years ago
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