The scale factor as I understand it will just be 1 to 30, inches to miles.
however, in this case it seems to be suggesting a conversion to the same unit, say hmmm let's convert the miles to inches.
The value is 50 because the amount of pages depents on the time he read
Answer:
Step-by-step explanation:
Remark
The red triangle has 1/3 the side length of the blue triangle. So the quick answer is the missing side of the blue triangle is 66
Now no one marking this, if they require work is going to accept that quick line of reasoning, so what you have to do is set up a proportion.
Equation (proportion)
57/19 = x / 22 Cross multiply
Solution
57*22 = 19 * x Divide by 19
57*22/19 = x Divide 19 into 57 (which is 3)
3 * 22 = x
x = 66