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3 years ago

14

Charlie bought two books at the bookstore. The first book cost $8.98 and the second book cost $17.78. How much did Charlie spend

on the two books? *
1 point
$26.66
$26.76
$26.86
$15.66

1 answer:

sergiy2304 [10]3 years ago

3 0

Answer:

The answer will be $26.76

Step-by-step explanation:

First you must add

$8.98 and $17.78 then you get 26.76 as your answer

Make sure to add the dollar sign.

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Using the formula in model 1, choose the correct answers for the total amount and amount of interest earned in the following com

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The total amount is $ 1015.82 and interest amount is $ 165.82

<em><u>Solution:</u></em>

<em><u>The formula for amount when interest is compounded annually is:</u></em>

$\mathrm{A}=P\left(1+r}\right)^{n}$

Where,

"A" is the total amount

"P" is the principal

"r" is the rate of interest in decimal form

"n" is the number of years

<em><u>From given, $850 at 2% for 9 years, compounded annually</u></em>

P = 850

t = 9 years

$r = 2 \% = \frac{2}{100} = 0.02$

<em><u>Substituting the given values we get,</u></em>

$A = 850(1+0.02)^9\\\\A = 850 \times 1.02^9\\\\A = 850 \times 1.1950\\\\A = 1015.82$

Thus total amount is $ 1015.82

Interest amount = Total amount - principal

Interest amount = 1015.82 - 850

Interest amount = 165.82

Thus total amount earned is $ 1015.82 and interest amount is $ 165.82

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Factor the expression 2x4y – 18x2y3 completely.

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Answer:

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Step-by-step explanation:

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Now, we have to calculate the population of the town after an additional 5 years.

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If ab = 8 and a^2+b^2=16, then what is the value of (a+b)^2?

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$ab = 8$ & $a^{2} + b^{2} = 16$ so , $( a+b )^{2} = 32$ .

<u>Step-by-step explanation:</u>

Here we have , ab= 8 & a^2+b^2=16 i.e. $ab = 8$ and $a^{2} + b^{2} = 16$ .

We need to find value of (a+b)^2 i.e. $(a+b)^{2}$ :

It's and identity and we know that $( a+b )^{2} = a^{2} +b^{2} +2ab$

⇒ $( a+b )^{2} = a^{2} +b^{2} +2ab$

⇒ $( a+b )^{2} = (a^{2} +b^{2}) +2(ab)$

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⇒ $( a+b )^{2} = (16) +(16)$

⇒ $( a+b )^{2} = 32$

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