Answer: 138.02
Step-by-step explanation: 103
X1.34
———-
Multiply and make sure you put the decimal in the right place!
The best measure of center is 8
x = 9
The sides on the left are proportional and can be used to find the sides on the right.
Since 72/8=9, 56/8 must equal 3x-20
![3x - 20 = 7 \\ 3x = 27 \\ x = 9](https://tex.z-dn.net/?f=3x%20-%2020%20%3D%207%20%5C%5C%203x%20%3D%2027%20%5C%5C%20x%20%3D%209)
Answer:
10.8
Step-by-step explanation:
i used a calculator
Answer:
-4x+y=7
Step-by-step explanation:
lets say you have y=4x+7 (linear equation)
to conver it to standard form you've got to make it Ax+By=C
so you minus the 4x and you should have -4x+y=7 for your standard form