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GarryVolchara [31]
3 years ago
13

14=-6+2(2x+4) solve this

Mathematics
1 answer:
Elis [28]3 years ago
4 0

Answer:

  • x=3

Step-by-step explanation:

\sf 14=-6+2\left(2x+4\right)

\sf -6+2\left(2x+4\right)=14

\sf -6+2\left(2x+4\right)+6=14+

\sf 2\left(2x+4\right)=2

\sf \frac{2\left(2x+4\right)}{2}=\frac{20}{2}

\sf 2x+4=10

\sf 2x+4-4=10-4

\sf 2x=6

\sf \frac{2x}{2}=\frac{6}{2}

\sf x=3

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2 years ago
plz i need help with this its due tmrw!! (also my other most recent question is #6 of this and it would be nice for answers for
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7. <u>You have $367.50 after two years.</u>

<em>Start by converting 2.5% into a decimal (divide by 100) and multiplying by 350 to find the rate of interest per year.</em>

<em>350(0.025) = 8.75</em>

<em>Since it's for two years, multiply by two. </em>

<em>8.75 x 2 = 17.5.</em>

<em>Add it on to he original, and we have</em>

<em>350 + 17.5 = 367. 5, or $367.50 when converted back to money. </em>

8. <u>The annual interest rate is 2.4%</u>

<em>find the interest rate per year: </em>

<em>120/2.5 = 48 dollars per year. this is the interest amount, we want to find the interest rate. To do this, find what % of 2000 that 48 is equal to. </em>

<em>Set up a system of equations and cross multiply.</em>

<em />\frac{48}{2000} = \frac{x}{100}<em />

<em>2000x = 48(100) > 2000x = 4800</em>

<em>2000</em><em>/2000</em><em>x = 4800</em><em>/2000 > </em><em>x = 2.4</em>

<em>So, the interest rate is 2.4%. </em>

9.  <u>the interest paid is $300 after six months, and $600 after a year.</u>

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10. <u>four years.</u>

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<em>200(0.035) = $7/year</em>

<em>Remember that value. Subtract needed from current.</em>

<em>228 - 200 = $28. </em>

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2 years ago
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