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2 years ago

7 MORE THAN TWICE a number n

Mathematics

1 answer:

Sever21 [200]2 years ago

5 0

Answer:

2n+7

Step-by-step explanation:

7 more than twice n would be:

2n+7

this is because twice n would mean that you'd multiply n by 2, and by 7 more than they mean you would add 7 to that.

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If $1600 earned simple interest of $56.24 in 2 months, what was the simple interest rate? The simple interest rate is % (Do not

Fiesta28 [93]

Answer:

$\$21.1$

Step-by-step explanation:

We know that for principal amount P , time period T and rate of interest $R\%$ , simple interest is given by $S.I. = \frac{P\times R\times T}{100}$ .

Here ,

$P=\$1600\\T=2\,\,months=\frac{2}{12}\,\,years=\frac{1}{6}\,\,years\\S.I=\$56.24$

To find : simple interest rate i.e., $R\%$

On putting values of $P\,,\,T\,,\,S.I$ in formula , we get $S.I. = \frac{P\times R\times T}{100}$

$56.24 = \frac{1600\times R\times 1}{600}\\R=\frac{56.24\times 600 }{1600}=\frac{703\times 3}{100}=\$21.09$

Now we need to round off the answer to the nearest tenth .

So, simple interest rate is % = $\$21.09$ = $\$21.1$

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3 years ago

Julie works for 48 hours per week for 12 weeks during the summer, making $5000. If she works for 48 weeks during the school year

spayn [35]

She would need to work 12 hours per week.

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3 years ago

PLS HELP ME ITS DUE IN 10 MIN------------- HERE ARE THE ASNWERS

DENIUS [597]

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Step-by-step explanation:

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2 years ago

Please help me on these questions and explain it thanks

Korolek [52]

ABC = 180-120=60
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3 years ago

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Softa [21]

Answer:

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Step-by-step explanation:

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