2 years ago

Explain the error in the solution below. What

Mathematics

1 answer:

ikadub [295]2 years ago

5 0

X5jhahaj661516 ıyqyququuquwuwuıwı

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A cake has a circumference of 25 1/7 inches. What is the area of the cake? Use 22/7 to approximate pi

Novosadov [1.4K]

To calculate for area given the circumference we proceed as follows:
C=2πr
where:
r=radius
thus given that C=25 1/7 in=176/7
thus plugging in our formula to solve for r we get:
176/7=2πr
thus
r=4.002~4.00 in
hence the area will be:
A=πr²
A=π×(4²)
A=50 2/7 in²

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3 years ago

A classroom had 8 rows of desks with 6 desks in each row. Four desks were removed from the room. How many desks were left?

Oduvanchick [21]

Answer: 44 desks.

First of all, you need to find how many desks there are in total. To find it, you need to multiply 8 with 6.

8 x 6 = 48

Next, it says that four desks were removed. All you need to do is subtract 4 from 48.

48 - 4 = 44.

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2 years ago

Solve for m. 2(5m + 4) = 2 (3m - 10)

agasfer [191]

2(5m+4)=2(3m-10)
10m+8= 6m-20
-6m -6m
4m+8= -20
-8 -8
4m= -28
m = -7

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3 years ago

Solve the equation for x. 8(2x − 6) = 96

Andrej [43]

Divide both sides by the numeric factor on the left side then solve x=9

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3 years ago