Answer:
3rd option
Step-by-step explanation:
-5 is smaller than -2.
-2 is smaller than 1
1 is smaller than 3
d = r · t ⇒ t = d/r
going
t = 54/(r + 4)
coming
t = 30/(r - 4)
54/(r + 4) = 30/(r - 4) times are equal
54(r - 4) = 30(r + 4) product means/extremes
54r - 216 = 30r + 120 distribute
24r - 216 = 120 subtract 30r from both sides
24r = 336 add 216 to both sides
r = 14 divide both sides by 24
Alfonso bikes at 24 mph.
Answer:
1/2 x 4/5
Step-by-step explanation:
Step 1. Multiply the numerators:
1/12 × 4/5 = 4 x 1 = 4
Step 2. Multiply the denominators:
5 x 12 = 60
Step 3. Simplify the fraction:
4/60 = 1/15
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