first solve for the perimeter of the rectangle
2w + 2l = 42
since the length of the rectangle is twice as long as the length and width of the square
2w = l
solve using substitution
2w + 2(2w) = 42
2w + 4w = 42
6w = 42
w = 7
are is length x width. a square has the same length and width
7 x 7 = 49
the area of one square is 49
Answer:
=24x−30
Step-by-step explanation:
=(6)(4x+−5)
=(6)(4x)+(6)(−5)
=24x−30
Answer:
Step-by-step explanation:
Set up a ratio in the form of pages/minute:
then fill in next to that how many pages per minute George can read:
Now we want to figure out how long (time is our unknown, so we call that x) it will take him to read 85 pages. The 85 goes in a ratio on the same line as the other number of pages:
Cross multiply to get 15x = 1020
Now divide both sides by 15 to get x = 68 minutes, which is an hour and 8 minutes.
6&7. Also -7,-6 is the correct answer