The ratio of their perimeters is still 7:20. The poster is a rectangle shape. If the length of each side of a poster is proportional to the other by a certain ratio, the sum of the lengths of all sides is also proportional by the same ratio. You can suppose the lengths of four sides of poster A are 7a, 7b, 7c, 7d, so poster B has 20a, 20b, 20c, 20d. (7a+7b+7c+7d)/(20a+20b+20c+20d)=7(a+b+c+d)/20(a+b+c+d)=7/20.
Answer:
Yes, the constant of proportionality is 1.5
Step-by-step explanation:
To compare ratios, write them as fractions. The ratios are equal if they are equal when written as fractions.
Answer:
-5/7
Step-by-step explanation:
slope = (difference in y)/(difference in x) = (-3 - 2)/(3 - (-4)) =
= -5/(3 + 4) = -5/7
Answer: -5/7
