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fiasKO [112]
3 years ago
7

Fill in the blank 31+____=61

Mathematics
2 answers:
eimsori [14]3 years ago
7 0
31+ ____ = 61
⇒ ____= 61 -31
⇒ ____= 30

The final answer is 30~
saveliy_v [14]3 years ago
6 0
31 plus 30 equals to 61
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Let x represent age of younger child.

We have been given that a mother has two children whose ages differ by 5 years. So the age of older child would be x+5.

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x^2+x^2+10x+25=97

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To find mother's age, we need to take positive square root of 1681 as:

\sqrt{1681}=41

Therefore, the mother is 41 years old.

4 0
3 years ago
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