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nevsk [136]
3 years ago
15

When 4 times the number X is added to 12, the result is 8. What number results when two x x is added to 7?

Mathematics
2 answers:
kvv77 [185]3 years ago
8 0

Answer:

X = -1

Step-by-step explanation:

4 x X    + 12=      8      substract 12 to both sides of equation:

              -12      -12

4X =  -4

X = -4/4= -1

Tomtit [17]3 years ago
6 0

Answer:  9 i think, i don't know hope i helped :)

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What is the perimeter of the polygon?
mr_godi [17]
Welp. I sure hope you like the Pythagorean theorem...
Top line:
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6 0
3 years ago
Which of the following investments could be represented by the function A = 250(1 + 0.08/12)12 × 4?
Alekssandra [29.7K]

hello,

the first term is 250 so this is the initial invested amount

(1+\dfrac{0.08}{12})^{12}=(1+\dfrac{8\%}{12})^{12}

is to compute 8% annual interest compounded monthly (there are 12 months in a year)

and then multiply by 4 means that it is computed for 4 years so

finally the answer is

$250 is invested at 8% annual interest compounded monthly for 4 years

hope this helps

7 0
3 years ago
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