When n basketball uniforms are purchased, the cost, c, of each uniform is given by the equation.

c = 40n + 260

if the total cost of the teams uniforms is $860, how many uniforms were purchased? what property of equality is the first step to use when solving this equation?

a.

addition property of equality; n = 8

b.

division property of equality; n = 6

c.

multiplication property of equality; n = 13

d.

subtraction property of equality; n = 15

D. Subtraction property of equality; n = 15

Step-by-step explanation:

Given equation that shows the cost of n basketballs uniforms,

C = 40n + 260

According to the question,

Total cost = $ 860,

⇒ 40n + 260 = 860

Using subtraction property of equality, subtract 260 on both sides,

⇒ 40n = 860 - 260

⇒ 40n = 600

Using division property of equality, divide both sides by 40.

⇒ n = = 15.

Hence, 15 uniforms were purchased.

i.e. Option D is correct.

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