Answer:
137.12
Step-by-step explanation:
Density = mass/volume
Density = 3.51
Mass = 481.3
Thus: 481.3/3.51 = 137.122507123
8/9 - 1/3 =
8/9 - 3/9 = 5/9
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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