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Hitman42 [59]
3 years ago
12

Which expression is equivalent to 13 - -21

Mathematics
1 answer:
Ber [7]3 years ago
5 0
13 + 21 = 13- -21

The minus sign and negative cancel each other out.
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The sum of two numbers is 110. The larger number is 2 less than 7 times the smaller. Find the larger number.
kumpel [21]
We call two numbers a and b, notice a>b
<span>The sum of two numbers is 110: a+b=110
</span><span>The larger number is 2 less than 7 times the smaller: a=7b-2
And by replacing a=7b-2 we have an equation: 7b-2+b=110
or 8b=110+2, and 8b=112, that means b=112:8= 14

We have two numbers: 14 and 96</span>
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4 years ago
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Ivahew [28]

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4 0
3 years ago
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olga_2 [115]
51/100 is the answer


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3 years ago
Solve the following equation by combining like terms:<br> 4y - 2y = 18
Lelechka [254]

Answer:

y = 9

Step-by-step explanation:

Collect the like terms:

2y = 18

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y = 9

8 0
3 years ago
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densk [106]

Answer:

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M = (L + S)

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S:7

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7 0
3 years ago
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