The width of a rectangle is 4x - 5.5 feet and the length is 5.5x + 7 feet. Find the perimeter of the rectangle.

19x+3

Step-by-step explanation:

P=l+l=w+w

P=5.5x+7+5.5x+7+4x-5.5=4x-5.5

P=11x+14+8x-11

P=19x+3

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

the answer would be  

a.

3: 1

step-by-step explanation: