Set up an equation that can be used to solve the problem. Solve the equation and answer the question asked. Eight times a number is 15 more than three times that number.
A.
| 8x = 3(x + 15); | 9 |
B.
| 8 + x = 3x + 15; | -  |
C.
| 8x = 3x + 15; | 3 |
D.
| 8x + 15 = 3x; | - 3 |
Answer: C
Mathematics
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A. {x|x > 
}, or (
, ?)
B. {x|x ? 2}, or (-?, 2]
C. all real numbers, or (-?, ?)
D. {x|x ? 2}, or (-?, 2) ? (2, ?)
Mathematics
Express the distance between the given numbers using absolute value. Then find the distance by evaluating the absolute value expression.39.4 and 20.4
A. |20.4 - 39.4| = -19.0 B. |20.4 + 39.4| = 59.8 C. -|39.4 + 20.4| = -59.8 D. |39.4 - 20.4| = 19.0
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Find a general term an for the arithmetic sequence.a1 = 20, d = 10
A. an= 10n + 10 B. an= 20n C. an= 10n + 20 D. an= n + 10n
Mathematics
Factor.169y2 - 36
A. (13y - 6)2 B. (169y - 36)(y + 1) C. (13y + 6)2 D. (13y - 6)(13y + 6)
Mathematics