Answer:
x=5
Step-by-step explanation:
7x - 4y = 23 and x + y = 8
Multiply the second equation by 4
4x + 4y = 32
Add this to the first equation
7x - 4y = 23
4x + 4y = 32
------------------------
11x = 55
Divide each side by 11
11x/11 = 55/11
x = 5
I think the answer is 558.04
C is the answer hope this helps.
2(x-3)=7x-31
2x-6=7x-31
-7x -7x
----------------
-5x-6=-31
+6 +6
--------------
-5x=-25
Divide by -5
x=5
3x-2(x+5)=-3+18
15
3x-2(x+5)=15
3x-2x-10=15
x-10=15
+10 +10
--------------
x=25
Step-by-step explanation:
Question number 1 The part is 23 and the whole is 35 and the percent is 66%.
Question number 2 is The part is 20 and the whole is 32 and the percent is 62.5%.
Question number 3 is 41 is 82% of 50.
Question number 4 is 3 is 6%of 18.
Question number 5 is 14 is 28% of 50.
