Question

After she had cut the card paper into a 20-inch by 15-inch rectangle, she realized that the card was much too big for the picture she made to tape on it. Now she has to cut the rectangle to reduce its area by half. If she cuts the same length of paper from all four sides, what will be the dimensions of the new greeting card?
Hint: area of rectangle = length × width
length = 10 inches; width = 15 inches
length = 15 inches; width = 10 inches
length = 30 inches; width = 1 inch
length = 1 inch; width = 30 inches
length = 1.5 inches; width =

Answer 1

@freckles

Answer 2

1. - 20 * 15 / 2

Answer 3

-20*15/2?

Answer 4

?????

Answer 5

-150

Answer 6

no, 20 times 15 divided by 2

Answer 7

150

Answer 8

-20*15=300?

Answer 9

20*15=300

Answer 10

then you need to do the "cut off the same on all 4 sides" part

Answer 11

do you know how you need to do that?

Answer 12

ohhh my bad, dont listen to me

Answer 13

you can put 75 on each side but I dont think that will give me the answer

Answer 14

so we have Area of the bigger rectangle is 20*15 which is 300
we want the newer rectangle inside that to be 150