4 years ago

What is the value of a in the equation 5 a minus 10 b equals 45, when b equals 3?

Mathematics

2 answers:

Mrrafil [7]4 years ago

8 0

Answer:

Step-by-step explanation:

Given:

5a - 10b = 45
b = 3,

Finding the value of a, solving the equation, considering the value of b=3:

5a - 10*3 = 45
5a = 45+30
5a= 75
a= 75/5
a= 15

Correct choice is 15

il63 [147K]4 years ago

4 0

Answer:

B. 15

Step-by-step explanation:

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