Answer:

Step-by-step explanation:
We can add the two equations to eliminate the variable
and solve for
:



Now, we can use substitution to solve for
:
(given)




Hope this helps :)
Answer: 28 gallons of paint needed to paint 16 classrooms.
Step-by-step explanation:
As 7 gallons Paint 4 classrooms so if we need to paint 16 classrooms which four times 4 classrooms so 7*4=28 gallons will be needed to paint 16 classrooms
Answer:
x= 2-1/2
Step-by-step explanation:
14x + 7y = 28
SUBTRACT 7Y FROM BOTH SIDES (TO ISOLATE X)
14x=28-7y
DIVIDE BY 14 TO ISOLATE X
x= 2-1/2
HOPE THIS HELPS ......PLZ MARK BRAINIEST
Answer:
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Step-by-step explanation:
I'm not showing you all of them, but this one is very simple.
You convert the percent(25%) to a decimal(0.25), then multiply it by the whole number(24). So simple, I got it all in one sentence.
0.25x24=6
25% of 24 is 6.
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hope it helps
Answer:
(-0.3)^4 = 0.0081
Step-by-step explanation: