AnswersMath 7 B M12 2526 S2Equations in the Real WorldQuestion 11
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Equations in the Real World

Question 11 • Math 7 B (M12 25/26 S2)

The equation equivalent to Hector’s calculations is 2.5 + 0.5x = 10. Use either of these methods to determine how many weeks it will take Hector to reach his goal of a 10 kilometer run.It will take Hector to reach 10 kilometers.

Answer
A
10 weeks
B
15 weeks
C
20 weeks
D
25 weeks

Explanation

Subtract 2.5 from both sides: 0.5x = 7.5. Divide both sides by 0.5 to get x = 15, so it will take Hector 15 weeks to reach his goal. The correct choice is B, 15 weeks.

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