chelly70
19.04.2021 •
Mathematics
Mr. drew rides his motorcycle with a constant speed of 72 mi/hr. How far can he travel in 2 ½ hours?
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Ответ:
180 miles
Step-by-step explanation:
Assuming that the speed of the motorcycle is constant, the following equation, (
) can be used to find the distance that a vehicle traveled when one is given the time and speed at which the vehicle operates. Substitute in these values, and solve,
Ответ:
x = 5
Step-by-step explanation:
Since the triangles are similar, corrresponding sides are in proportion.
Using the equation formed by the second and third fraction above we get
28(x + 7) = 24(3x - 1)
28x + 196 = 72x - 24
44x = 220
x = 5