Question

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Answer 1

The answers have been shown below.

To find the answers:

Questions regarding the time spent by Jack jogging and bike riding are needed to be answered.

(A) The equations are $x+y=75, y=15+x$

Time spent jogging is 30 minutes

The total time would be $45+60=105$ minutes which is not equal to 75 minutes.

(B) Let $x$ be the time spent jogging.

$y$ be the time spent bike riding.

$x+y=75\\y=15+x\\x+15+x=75\\2x+15=75\\x=\frac{75-15}{2} =30$

Time spent jogging is 30 minutes.

$y=60\\x+y=75$

(C) If he rides his bike 15 minutes longer than he jogs then he would have to jog $60-15 = 45$ minutes.

Therefore, the total time would be $45+60=105$ minutes which is not equal to 75 minutes.

Know more about equations here:

brainly.com/question/2972832

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