A square painting is surrounded by a frame. The outside edges of the frame or X inches in length and there is a 5 inch border between painting in the frame. What is the total area of the border

Step-by-step explanation:

The area of a square of side, , is given by

The area of the frame with the painting is .

Because there is a 5 inch border between the painting and the frame, the side length of the painting is . Hence the area of the painting is .

The total area of the border is the difference of the two areas:

a box 3 3/4 feet long or 4+ feet.

step-by-step explanation:

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!