Please please answer this correctly

Mathematics

2 answers:

Nataly_w [17]3 years ago

4 0

Answer:

d = 10 km

Step-by-step explanation:

Circumference is equal to pi times diameter

C = pi *d

We know the circumference is 30

30 = pi *d

Let pi = 3

30 = 3d

Divide each side by 3

30/3=3d/3

10 =d

The diameter is 30 km

Aliun [14]3 years ago

3 0

The answer is 10 as the diameter because it says to estimate pi as 3. Since we know the circumference is 30 we can reverse it to find the diameter, since Circumference is pi time diameter.

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8_murik_8 [283]

Answer:

see attached

Step-by-step explanation:

As you know, dividing by a fraction is the same as multiplying by that fraction's inverse (or reciprocal). Any whole number is equivalent to the fraction that is that whole number divided by 1. (For example, 4 = 4/1.)