Respuesta :
Answer:
for B : he spend 30 minutes jogging and 45 minutes riding his bike
Step-by-step explanation:
75-15=60
60/2=30
jogging (x) =30
30+15=45
riding bike (y) =45
hopefully that help with B
Jack jogs for 30 minutes and he rides his bike for 45 minutes
Let x represent the number of minutes jogged and y represent the number of minutes that he ride his bike.
Jack jogs and rides his bike for a total of 75 minutes every day. hence:
x + y = 75 (1)
He rides his bike for 15 minutes longer than he jogs. hence:
y = x + 15
-x + y = 15 (2)
Solving equations 1 and 2 simultaneously gives:
x = 30, y = 45
Jack jogs for 30 minutes and he rides his bike for 45 minutes
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