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katen-ka-za [31]
3 years ago
14

The sum of 7 and 3 times a number is 34. What is the number?

Mathematics
1 answer:
nordsb [41]3 years ago
6 0

Answer:

9

Step-by-step explanation:

Let the unknown number be x

Sum means add

7 + 3x = 34

Subtract 7 from each side

7+3x-7 = 34-7

3x = 27

Divide by 3

3x/3 = 27/3

x = 9

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A bowl contains 11 white stones and 3 black stones. One stone is chosen and not replaced, then another stone is chosen. What is
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In a 30°-60°-90° triangle, what is the length of the longer leg when the length of the hypotenuse is 18 inches?
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9sqrt(3) in.

Step-by-step explanation:

The ratio of the lengths of the sides of a 30-60-90 triangle is:

short leg : long leg : hypotenuse

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