Someone help me The circumference of a quarter is approximately 2.88 inches. If the quarters are arranged as shown, what is the length of the row of quarters? (Use 3 for pi.) A.…

Question

asked Jun 27, 2020 195k views

1 Answer

Andrew Watt · Answer 1 · 2020-07-02T20:47:36+0000

Answer:

see the explanation

Explanation:

we know that

The circumference of a circle is equal to

$C=\pi D$

where

D is the diameter

In this problem we have

$C=2.88\ in$

$\pi=3$

substitute and solve for D

2.88=(3)D

D=2.88/3

$D=0.96\ in$

we know that

The length of the row of quarters is equal to multiply the diameter of the quarter by the number of quarters in the row

so

For 4 quarters in the row, the length is equal to -->
$0.96(3)=3.84\ in$

For 6 quarters in the row, the length is equal to -->
$0.96(6)=5.76\ in$

For 12 quarters in the row, the length is equal to ->
$0.96(12)=11.52\ in$