4 years ago

How do i solve this?

Mathematics

1 answer:

blsea [12.9K]4 years ago

8 0

Hint:

Diameter(d)= 2 radius(r)

circumference= 2πr= πd

1. diameter= 19 × 2 = 38 inches

circumference= 3.18(38) = 119 inches (3 s.f.)

Note that I use 3.18 instead of π because the question states to use 3.14 for π.

Likewise, if you are given the diameter, divide it by 2 to find radius. Let's try a question which only gives you the diameter.

4. radius= 22 ÷ 2 = 11cm

circumference= 3.14(22) = 69.1cm (3 s.f.)

You might be interested in

A rope is 66 feet long. It is cut into two pieces such that one piece is half the length of the other. What is the length of the

dedylja [7]

So if one bit of the length, is half the size of the other bit then we can make the following equation, for x being the length of rope:

x + 2x = 66
3x = 66
x = 22

That is the length, of the smaller one (half the big one), so 2x = 44. Hence d) is your answer.

Hope I helped!

7 0

3 years ago

Read 2 more answers

Taylor took 560 photographs during summer vacation. She placed 12 photos on each page of her scrapbook, but she had fewer than 1

Hoochie [10]

Taylor placed 8 photos on the last page of her scrapbook.

4 0

3 years ago

Lauren bought g golf balls. The balls came in 10 packages. Write an expression that shows how many golf balls were in each packa

mezya [45]

G/10
g amount into 10 different sections.

6 0