Raymond B. answered • 09/05/22
Tutor
5
(2)
Math, microeconomics or criminal justice
d 157.5 km
225(.7) = 157.5
1.75 = .7(2.5)
1.75/2.5 = .7=7/10
in 7/10 the time, he goes 7/10 as far
but without even doing any calculations, you could eliminate a, b and c for having the wrong units, leaving d as the best answer, regardless of the numbers. b and d clearly wrong units, cm^2 and km/hour. measures of area and speed. a at least has a measure of length but cm is too far outside the ball park, just too implausible. IF this were a time pressure test, just check d, without even looking at a calculator and move on.
