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bekas [8.4K]
3 years ago
14

a painter can paint 20 windows in one day. If he has to paint 50 pairs of windows how much time will he take to paint

Mathematics
1 answer:
vazorg [7]3 years ago
5 0

Answer:

50*2=100

100/20=5

The answer is 5 days!

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The population growth of two towns over a period of five years is represented by the system of equations below, both algebraical
Andreas93 [3]

Answer:

(4, 10)

Step-by-step explanation:

Hope this helps

3 0
3 years ago
A rope is 24 feet long. It is cut into two pieces such that one piece is half the length of the other. Find the lengths of the t
horsena [70]

Answer:

6 ft long

Step-by-step explanation:

If your rope is 24 ft long, then split it into 2.

Then each is 12 ft long

Split one of the 12 ft peices in half

SO,... its 6 ft for one rope, and 18 ft for the other.

Hope this helps!

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3 years ago
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3 years ago
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Simplify using the distributive property
ad-work [718]

Answer:

3/5 is the number that can be distributed across two terms inside parentheses.

you might not need it but:

x = 5

Step-by-step explanation:

<u>3/5(x - 10)</u> = 18 - 4x - 1

using distributive property, open the parentheses:

<u>3/5x - 6 </u>= 18 - 4x - 1

Simplify:

3/5x + 4x = 17 + 6

4⅗x = 23

x = 5

8 0
3 years ago
Solve the system by substitution<br> -x - y - z= -8<br> -4x + 4y + 5z = 7<br> 2x + 2z = 4
Stella [2.4K]

First:

2x + 2z = 4

2(x+z)=4

x+z=4/2

x=2-z

-x - y - z=  -8

-(2-z)-y-z= -8         replace x

-2+z-y-z= -8          (cancel z)

-2-y= -8

6 = y

Then:

-4x + 4y + 5z = 7  replace x and y

-4(2-z)+4*6 + 5z = 7

-8 + 4z + 24 + 5z = 7

16 + 9z = 7

9z = 7 - 16

9z = -9

z = -9/9

z= -1

Finally

x= 2-z  replace z

x = 2- (-1)

x = 3

5 0
3 years ago
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