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ahrayia [7]
3 years ago
6

Write an equation and solve: Twice a number, increased by 3 is 7.

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
8 0
The unknown number canbe replaced with x. So twice a number is 2x and in creased by 3 is +3. so the equation would be 2x + 3= 7  and the unknow number, or x, is 2.  2 times two is 4 plus 3 = 7
ipn [44]3 years ago
7 0
2x+3=7
2x=4
x=2
The answer is A) 2
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Answer:

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<u></u>

Step-by-step explanation:

This is a compound growth problem . THe formula is:

F=P(1+\frac{r}{n})^{nt}

Where

F is future amount

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Given:

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The compound interest formula modelled by the variables is:

F=1500(1+\frac{0.03}{12})^{12t}\\F=1500(1.0025)^{12t}

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F=1500(1.0025)^{12t}\\F=1500(1.0025)^{12*5}\\F=1500(1.0025)^{60}\\F=1742.43

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brainly.com/question/735261

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