Let
x--------> Dividend
y-------> Divisor
Q-------> Quotient
we know that

solve for x


Examples
example 1

Find the value of x

A division problem is equal to

example 2

Find the value of x

A division problem is equal to

In this question, there are a few kinds of the coin with a different value. To answer this question, we need to know the total coin first. The total coin count should be: 10 +20 + 15 +5= 50 coin
In this case, the coin is taken twice, that means the denominator should be 50*49. But in this question, the probablity value is 6/49, so you need to convert it into 50*49 by multiplying the numerator with 50. The value should be:
6/49 *50/50= 300/49*50
The number 300 is multiplication of 20 and 15, that mean the answer should be: 1 dimes and 1 nickles
Answer:
7x+12 because there is 8x then you subtract 1x which 'll equal 7x and add the 12
Harriet works 42 hours a week. She gets paid £9.12 for each hour she works. An estimated amount Harriet gets paid in a week is £378
<h3>How to calculate the percent error?</h3>
Ssuppose the actual value and the estimated values after the measurement are obtained. Then we have:
Error = Actual value - Estimated value
Harriet works 42 hours a week. She gets paid £9.12 for each hour she works.
1 hour = £9.12
Estimated
£9 x 42 hours = 378
Actual
£9.12 x 42 hours = 383.04
Learn more about error;
brainly.com/question/27470570
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The answer should be A because when you multiply two negatives it comes out positive