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Use proportional reasoning to determine the value of a in the proportion shown below.
a=1
a=25
a=10
a=15

Sagot :

Parrain

Answer: a = 10

Step-by-step explanation:

3/5 = a + 5/25

Multiply both sides by 25 to get rid of it:

3/5 * 25 = 25(a + 5) /25

15 = a + 5

a = 15 - 5

a = 10

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