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05.07.2019 •
Mathematics
What is fourteen more than three times a number is 2?
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Ответ:
Fourteen more than three times a number is 2
14 + (3 * x) = 2
subtract 14 on both sides
3x = -12
divide 3 on both sides
x = -4
that number is negative 4
Ответ:
Divide 65 by 13.
65/13=5
Multiply 15 by 5 for the proportionate factor.
75.
There are 75 girls in the classroom.
We're looking for the total so we need to add 65 with 75.
65+75= 140.
There are 140 total students.