Jill ran faster. I know because I compared both of their unit rates.
Jack's unit rate is 5/42.5 = 0.118 mile per minute (rounded)
Jill's unit rate is 3/23.25 = 0.129 mile per minute (rounded)
Jill runs a greater part of a mile per minute than Jack does.
She is faster. There's no getting around it.
-1/2 (t+3) -10 = -6.5
t = - 10
Answer:
It's 4-12x
Step-by-step explanation:
Let x be the number of snack packs, then
4 + 14x < 25
14x < 25 - 4
14x < 21
x < 21/14
x < 1.33
