Help me ASAP for this question

18 : 3

Step-by-step explanation:

Basic proportionality question. All we need to here is to expression the given fractions ( , and ) as a fraction itself, and hence expressing the ratio we need to get, in fraction form.

- So, we have expressed this in a fraction, which we want to reduce

- The fractions have been taken as improper fractions

- Now we took the inverse fraction, through multiplication

- 35 and 35 cancel out, leaving us with the simplified fraction 18 / 3

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So now we have 18 / 3, the ratio in fraction form. The scale is thus 18 to 3, or in other words 18 : 3.

Hope that helps!

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.