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Mathematics

1 answer:

nekit [7.7K]3 years ago

5 0

Answer:

Step-by-step explanation:

n-o

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Andrew is saving up money for a down payment on a car. He currently has $3355, but knows he can get a loan at a lower interest r

Rufina [12.5K]

Answer:

5.06 years or 60.75 months

Step-by-step explanation:

Compound interest formula:

$AV=PV(1+\frac{i}{n})^{n*t}\\4045=3355(1+\frac{.037}{12})^{12t}\\1.025=(1.003)^{12t}\\log1.025_{1.003}=12t\\60.75=12t\\5.062$

5.06 years or 60.75 months

3 0

3 years ago

Solve -2-2(-7+b)=-8b+24

MArishka [77]

Answer:

Step-by-step explanation:

$-2-2(-7+b)=-8b+24\qquad\text{use the distributive property}\\\\-2+(-2)(-7)+(-2)(b)=-8b+24\\\\-2+14-2b=-8b+24\qquad\text{combine like terms}\\\\(-2+14)-2b=-8b+24\\\\12-2b=-8b+24\qquad\text{subtract 12 from both sides}\\\\12-12-2b=-8b+24-12\\\\-2b=-8b+12\qquad\text{add}\ 8b\ \text{to both sides}\\\\-2b+8b=-8b+8b+12\\\\6b=12\qquad\text{divide both sides by 6}\\\\\dfrac{6b}{6}=\dfrac{12}{6}\\\\b=2$