= 9.71 Only way I could think of to solve it
Step-by-step explanation:
10x-72=3x-4
7x=68
x=9.71
It looks like you are trying to factor a quadratic. So you are looking for the numbers that when you multiply them, you get the top number (100), but when you add them you get the bottom number (-20).
Those two numbers are -10 and -10.
Hope that helps!
Answer:
You multiply the length, width, and height
Step-by-step explanation:
3 sisters bought 2 x 3 = 6 dress and and 1 x 3 = 3 purses.
3 sisters bought 6 dresses and and 3 purses.
Find 3 purses:
1 purse = $26
3 purses = $26 x 3 = $78
Find 6 dresses:
Total = $205.50
6 dresses = $205.5 - $78
6 dresses = $127.50
Find 1 dress:
6 dresses = $127.50
6 dresses = $127.50 ÷ 6
1 dress = $21.25
Answer: $21.25
No because the exact opposite of -3 would be 3.