The width of a rectangle is 20 inches what must the length be if the perimeter is at least 180 inches

The perimeter is the sum of the 4 sides.

The width is 20, so the 2 widths would be 20+20 = 40

Subtract that from the given perimeter:

180 - 40 = 140

Divide that by 2 for the two lengths:

140/2 = 70

The length needs to be at least 70 inches.

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

ƒ = 0.03b

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step-by-step explanation: