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Free_Kalibri [48]
3 years ago
9

Araine borrows $400 on a 4-year loan. She is charged 5% simple interest per year. How much interest is she charged for 4 years?

What is the total amount she has to pay back?
Mathematics
1 answer:
DiKsa [7]3 years ago
5 0

Answer:

Interest Charged = $80

Total payback = $480

Step-by-step explanation:

According to the scenario, computation of the given data are as follows,

Present Value (PV) = $400

Time period (n) = 4 years

Interest rate (r) = 5%

So, we can calculate the future value(FV), by using following formula,

FV = PV ( 1 + n × r)

By putting the value, we get

FV = $400 ( 1 + 4 × 0.05)

= $480

Hence total amount she has to pay back = $480.

Interest charged = FV - PV

= $480 - $400

=$80

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alukav5142 [94]

Answer:

Technician A is correct.

Step-by-step explanation:

Technician A says that a cylinder leakage test fills the cylinder with compressed air, and the gauge indicates the percentage of leakage.

This is correct.

The cylinder leakage test is also called engine leak down test. Here rather than measuring the ability of engine to generate pressure, compressed air is filled in the cylinder via spark plug hole.

8 0
3 years ago
Composition of functions
astra-53 [7]
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3 years ago
(-4,1) and (-8,7) <br><br> write an equation in slope-intercept form
Alchen [17]

Answer:

y = -2x - 9

Step-by-step explanation:

so we have our two points, (-4,-1) and (-8,7) What we need to do to find our slope is y2 - y1 over x2 - x1. Once plugging in the numbers and subtracting it should give you 8/-4. 8 divided by -4 is -2. m = -2. Now to find our "b" we plug in our slope, and plug in one of the two points into the format of y = mx + b.

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we subtract 8 from itself and -1

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Our equation is y = -2x - 9

5 0
3 years ago
Which expression shows 27 + 36 as the product of their greatest common factor and the sum of two whole numbers with no common fa
Diano4ka-milaya [45]
I believed there is a typo error in the choices. Below I assume that the correct choices:

<span>A. 9 (3+4)
</span>B. 9 (4+5)
C. 7(4+5)
D. 7(3+6)

The answer is letter A which is 9 (3+4) the greatest common denominator of 27 and 36 is 9. The factor of 27 is 9 and 3 while for 36 is 9 and 4. To check the answer you need to solve 9 (3+4) which is 63 while 27 + 36 is also 63. 
8 0
2 years ago
I need help on questions 9, 10, and 11 please!
bulgar [2K]
In general, to find the surface area of a prism (a shape with 2 bases) is 
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#9 Area of base= 2×1÷2=1 *2=2
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Answer=740
#11
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Answer=57.4

8 0
3 years ago
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