What is the answer of 3m-10=2(4m-5)

2 answers:

7 0

3m-10=2(4m-5)
-Distribute

3m-10=8m-10
-Add/Subtract from both sides

3m-10=8m-10
+10 +10
They cancel each other out

3m = 8m

No solution

mr_godi [17]2 years ago

4 0

3m-10=2(4m-5)
3m-10=8m-10
3m-8m=-10+10
-5m=0
m=0

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judy got 117 problems right on a math test in her night school class. She got a score of 78% right. How many problems were on th

scZoUnD [109]

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Part=117
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2 years ago

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elixir [45]

Answer:

$\text{Exact area of the sidewalk}=40 \pi\text{ m}^2$

$\text{Approximate area of the sidewalk}=125.6\text{ m}^2$

Step-by-step explanation:

We have been given that at a zoo, the lion pen has a ring-shaped sidewalk around it. The outer edge of the sidewalk is a circle with a radius of 11 m. The inner edge of the sidewalk is a circle with a radius of 9 m.

To find the area of the side walk we will subtract the area of inner edge of the side walk of lion pen from the area of the outer edge of the lion pen.

$\text{Area of circle}=\pi r^2$ , where r represents radius of the circle.