Speed (S) = Distance (D) / time (t)
First stretch
45 = D / 2
D = 45*2
D = 90 mp
How is the same distance:
Second stretch
S = 90 / t
Average speed (AS):
AS = (S1+S2) / 2
60 = [45+(90/t)] / 2
120 = 45+90/t
120-45 = 90/t
75 = 90/t
t = 90/75
t = 1,2 h
________________________
And now:
S = 90 / t
S = 90 / 1,2
S = 75 mph
Answer:
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![23\sqrt[1]{2}](https://tex.z-dn.net/?f=23%5Csqrt%5B1%5D%7B2%7D)
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Step-by-step explanation:
Simplify.
Answer:
90$
Step-by-step explanation:
(12 pairs of jeans * $7.50) / 1 pair of jeans = 90$
Answer:if she spends $10 dollars every 3 weeks it will take her 45 weeks to have her only $5 dollars left in her bank account
Ratio
28:84
If you want it simplified
it would be
1:3<span />
