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ivann1987 [24]
3 years ago
8

7 + 7 + (-1) = ?A. 16B. 10C. 13D. 7

Mathematics
2 answers:
saul85 [17]3 years ago
5 0
7 + 7 + (-1)
7 + 7 - 1
13

Hope this helps :)
artcher [175]3 years ago
4 0
Hi there! The answer is C. 13

Step by step:
7 + 7 + (- 1) =

Work out the parentheses.
7 + 7 - 1 =

Now add up
14 - 1 =

Finally subtract
<u>13</u>
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4 years ago
One number is 3 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 500,
Likurg_2 [28]
<span>Let the first number be x.
Then the second number is 3x.
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We can check by adding all three of those numbers together: 80+240+180 = 500
</span>
Hope this helps! If you have any questions just ask!
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