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atroni [7]
2 years ago
12

Last week, Rohana bought a new computer for 10% off the advertised price. The advertised price was $1,800. How much did Rohana h

ave to pay for the computer?
Mathematics
1 answer:
oee [108]2 years ago
6 0
10% of 1800 is 180. If she payed 180 ten times it would be 1800 dollars. The computer is 180 dollars off. 1800-180= 1620. She pays $1620
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Fran deposited 4869 into a savings account that pays simple annual interest rate of 3.25% how much interest will she earn after
Whitepunk [10]

Answer:

$395.61

Step-by-step explanation:

The formula for simple interest is:

i=Prt

Where

i is the interest amount

P is the principal amount

r is the rate of interest per time period

t is the time period

Here,

P = 4869

we want to find after 30 months, that converted to years is:

30/12 = 2.5 years

t = 2.5

The annual rate is 3.25% = 0.0325

Now, substituting, we find our answer:

i=Prt\\i=(4869)(0.0325)(2.5)\\i=395.61

The interest earned is <u>$395.61</u>

8 0
2 years ago
In a recent​ poll, 44​% of survey respondents said​ that, if they only had one​ child, they would prefer the child to be a boy.
viva [34]

Answer:

a) The probability that 71 of 150 will prefer boy child is 71/150 or 0.47

b) The result contradicts the poll actual percentage is 47.33% which is 3.33% more than the poll predicted

Step-by-step explanation:

If 71 out of 150 prefer boy child

The probability that the 71 will prefer boy child is

= 71/150

The actual percentage is

(71/150)*100%

= 47.33%

This contradicts the poll as this is more than the poll predicted. That means Less than 71 of 150 actually preferred boy child.

5 0
3 years ago
Peter uses the equation y = StartFraction 13 over 4 EndFraction x to model the number of miles that he has walked in x hours. Wh
Umnica [9.8K]

The true statement is Peter walks at a rate of 13 over 4 miles per hour.

<h3>What is the true statement?
</h3>

Direct variation is when two variables move in the same direction. If one variable increases, the other variable increases. When the hour Peter walks increases, the distance he walks also increases.

Here are the options:

Peter walks at a rate of StartFraction 4 over 13 EndFraction miles per hour.

Peter walks at a rate of 4 miles per hour.

Peter walks at a rate of StartFraction 13 over 4 EndFraction miles per hour.

Peter walks at a rate of 13 miles per hour.

To learn more about direct variation, please check: brainly.com/question/27573249

#SPJ1

8 0
2 years ago
What is the height of a trapezoid with an area of 99 in.2 whose bases are 6 in. and 12 in.?
vladimir1956 [14]

Answer:

trapezoid area = ((sum of the bases) ÷ 2) • height

trapezoid area = ((6 + 12) / 2) * height

trapezoid area = 18 / 2 * height

height = 99/9 = 11

Step-by-step explanation:

7 0
3 years ago
The solutions for cos^2 x - cos 2x =0, over the domain 0 &lt; x &lt; 2π are
Reika [66]
D because it helps better and explains better and makes most sense
8 0
2 years ago
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