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Nonamiya [84]
3 years ago
5

How to solve the equation and rounding the answer to four decimal places

Mathematics
1 answer:
pogonyaev3 years ago
5 0
The answer is 0.5778 or 0.578 rounded

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Four sisters bought a present for their mother. They received a 10% discount on the original price of the gift. After the discou
Orlov [11]

Answer:

$40

Step-by-step explanation:

x is the original price of the gift

(10% of x) is the value of the discount

(10% of x) = 10/100 . x = 0.1 x

0.1 x    is the value of the discount

x - (10% of x) is what was paid, after the discount

x - 0.1 x = 0.9 x

0.9 x    is what was paid

4 children paid $9/each

4 times $9 = $36

$36 is the total amount that was paid by the children

$36 = 0.9 x

$36 / 0.9 = x

x = $36 / 0.9 = 360 / 9

x = 40

;-)

4 0
4 years ago
PLEASE HELP <br><br><br><br><br><br> Note: Please explain your answer below in the answer box
Mariulka [41]
The answer is B.
There are 30 days remaining in the month of January plus the beginning 15 miles that she already ran.
7 0
4 years ago
Find the distance an airplane travels in 3 hrs at 478 mph
Elza [17]
Multiply 478 by 3 and you get 1,434 miles
6 0
4 years ago
4 thousands 7 hundreds =47
aliya0001 [1]
It is 4,700 for the answer
5 0
3 years ago
Use the elimination method to solve the system of equations. <br><br> X+y=-3<br> X-y=13
Olin [163]
So I will choose to cancel the y first because that is easiest. To do this, add both equations together.
x+y = -3
+
x - y = 13
This will give us:
2x = 10
therefore, x = 5
Now, we can plug this into the first equation to find y
5+y = -3
y = -3 - 5 
y = -8

Answer:
x = 5
y = -8

Hope this helped!! :D
3 0
3 years ago
Read 2 more answers
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