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How do I find the value of the missing number multiplying fractions and whole numbers?

? • 1/10 = 7.34

2 Answers

2 votes
Instead of the question mark write it as X (variable or thing you will be finding) multiplied by 1/10 = 7.34 , multiply 1/10 and x which is 1x/10 = 7.34 , ALWAYS remember that to get rid of a denominator you must multiply it by itself so multiply 1x/10 by 10 which will equal 1x DONT forget to multiply 10 on both sides so it will be 1x = 73.4 , divide the one out and you will get x = 73.4 which is your answer.
User Francisco Paulo
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7.4k points
6 votes

Answer:


\boxed{\bf \boxed{ \bf 7.34} * \cfrac{1}{10} = 7.34}

Explanation:

Given equation :


\sf \longrightarrow {?} \: • \: 1/10 = 7.34

We need to find the value of missing number (?).

Solution :

Let be the value of unknown number is x.

So, ?=x

Note that • = ×


\sf \longrightarrow \: x * 1/10 = 7.34

Step 1 : Rewrite this equation :


\sf \longrightarrow (1)/(10) x = 7.34

Step 2 : Multiply both sides by 10 :


\sf \longrightarrow = 10 * (1)/(10) x = 10 * 7.34

Step 3 : Cancel 10 and 10 which is on the LHS, and multiply 10×7.34 (RHS) :


\sf \longrightarrow \cancel{10} * \cfrac{1}{ \cancel{10}}x = 73.4


\sf \longrightarrow \: 1x = 73.4

As 1x = x,


\sf \longrightarrow \: x = 73.4

Hence, x = 73.4

Then, Put 73.4 instead of x :


\sf \longrightarrow \: \boxed{73.4 }* 1/10 = 7.34\bf (Answer)

________________________________ I hope this helps!

Please let me know if you have any questions.

User Brad Cupit
by
8.5k points