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tatyana61 [14]
3 years ago
14

What am I doing wrong here?

Mathematics
2 answers:
Yanka [14]3 years ago
7 0

Answer:

$879.19

Step-by-step explanation:

I'm not sure how you got that, but here's what I did.

To calculate tax:

Cost before tax * Tax% = Tax

$815.95 * 7.75% = $63.24

To calculate cost after tax:

Tax + Cost before tax = Cost after tax

$63.24 + $815.95 = $879.19

evablogger [386]3 years ago
5 0
<h2>Answer:</h2>

<u>The answer is </u><u>879.1 </u>

<h2>Step-by-step explanation:</h2>

The original cost is $ 815.95

The cost rate is 7.75 %

The cost on the original cost will be 815.95 * 7.75/100 which comes out to be 63.23

So after adding the tax which is 63.23 to the original cost gives us 815.95 + 63.23 = 879.1

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Roberto wants to make $2.00 using half of dollar, and quarters.how many different ways can he make $2.00
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A half a dollar is 50 cents. If you want to use quarters, you would need 6 more quarters to make 2 dollars.
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Alvin's age is three times elga's age. the sum of their ages is 32 . what is elga's age
jeyben [28]
Alvin is 24 and Elga is 8. sorry I'm late

6 0
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When making bread from scratch, the recipe calls for 4 /5 cup of water. If you need to make a smaller portion of the recipe, how
lisabon 2012 [21]

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You need 1/20 cup of water.
3 0
3 years ago
For the functions f(x)=−9x^2+9 and g(x)=8x^2+9x, find (f+g)(x) and (f+g)(−1)
Galina-37 [17]

Answer:

f(x) = - 9x² + 9

g(x) = 8x² + 9x

To find (f+g)(x) add g(x) to f(x)

That's

(f+g)(x) = -9x² + 9 + 8x² + 9x

Group like terms

(f+g)(x) = - 9x² + 8x² + 9x + 9

<h3>(f+g)(x) = - x² + 9x + 9</h3>

To find (f + g)(- 1) substitute - 1 into (f+g)(x)

That's

(f + g)(- 1) = -(-1)² + 9(-1) + 9

= - 1 - 9 + 9

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Hope this helps you

7 0
3 years ago
One half of the difference of a number and three will result in two thirds of the difference of the number and eight
cupoosta [38]

1/2(x - 3) = 2/3(x - 8)

<em><u>Distributive property on both sides.</u></em>

0.5x - 1.5 = 0.7x -5.3

<em><u>Add 5.3 to both sides.</u></em>

0.5x + 3.8 = 0.7x

<em><u>Subtract 0.5x from both sides.</u></em>

3.8 = 0.2x

<em><u>Multiply both sides by 5.</u></em>

x = 19 (This is your answer.)

Let me know if you have any other questions. :)

6 0
3 years ago
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