Kate: 1250 ≥ 525+25x
25x ≥1250 -525
25x ≥ 725
x ≥ 725 / 25
x≥ 29 weeks
Rebecca: 1350 ≥ 510 + 30x
30x ≥ 1350 - 510
30x≥ 840
x≥ 840 / 30
x≥28 weeks
Katie needs 1 more week than Rebecca
You can use the distance equation.. d = rt
d = distance = 645
r = rate = 215 mph
t = time = ???? find the time
645 = 215t
645/215 = 215t / 215
3 = t
t = 3
It took 3 hours
Answer:
Step-by-step explanation:
9L/4days = 2L/1day, which is the unit rate.
Over the course of 4 days: (2L/day)(4 days) = 8 Liters
Answer:
32=40
26=39
Step-by-step explanation:
