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Mars2501 [29]
3 years ago
9

Kylie writes an equation to solve for the diameter, d, of the circle shown. Solve Kylie’s equation to find the diameter of the c

ircle.
4 (d + 4) = 72

What is the diameter?
7.5 in.
8.25 in.
11.25 in.
13.25 in.
Mathematics
2 answers:
anygoal [31]3 years ago
4 0

Answer:

14

Step-by-step explanation:

In an equation our aim is to find the value of what we are looking for as well as keeping the equation balanced. For example if we took away 16 only from one side then the equation would change so it's an important rule to bare in mind when solving equations, that you need to keep both sides of the equation the same.

4 ( d + 4 ) = 72

→ Expand the brackets

4d + 16 = 72

→ Minus 16 from both sides to isolate 4d

4d = 56

→ Divide both sides by 4 to isolate d

d = 14

mel-nik [20]3 years ago
3 0

Answer:

The diameter is 8.25 in

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