<h2> <u><em>
answer: </em></u>21 is 70% of 30
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<h2><u><em>
Working out percentages
</em></u></h2><h2><u><em>
We have, 70% × x = 21
or, 70100 × x = 21
</em></u></h2><h2><u><em>
Multiplying both sides by 100 and dividing both sides by 70,
</em></u></h2><h2><u><em>
we have x = 21 × 100
70
x = 30
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If you are using a calculator, simply enter 21×100÷70, which will give you the answer.</em></u></h2>
Answer:
3Ax-6x = 15
3x(A-2)=15
If A were 2, the left side of the equation would be 0 and it wouldn't equal 15 no matter what the value of x is. So A is 2
Answer: 35 minutes
Step-by-step explanation:
84 liters divided by 2.4 liters per minute
84/2.4=35 minutes
1/12 + 3/8 LCD is 24 9/24 + 2/24 = 11/24 or 0.46
Answer:
35(3)+168= 278
Step-by-step explanation:
35(x)+168
x= the hours of labor
