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Sophie [7]
4 years ago
15

Susana bought a laptop for $500. It was marked $50 off because it was out of the box and slightlly scratched. She also got 20% s

tudent discount, which was taken off the original price. What was the original peice of the laptop? Write and solve an equation to answer the question
Mathematics
2 answers:
kykrilka [37]4 years ago
5 0
20% of $500 = 100$ so we take off 100.

And we take off $50 because it was out of the box and slightly scratched.

So result is $500 - $100 = $400
$400-$50 = $350

Answer = $350

Equation:
Let’s say
500=X
100=Y
50=Z
And answer = A

A=X-(Y-Z)

I hope this will be helpful
yan [13]4 years ago
4 0

Answer: 500*20%=100-50=50

Step-by-step explanation:

500*20%=100-50=50

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If two sweaters and four shirts cost $150, and four sweaters and three shirts cost $200, find the price of each shirt and each s
STALIN [3.7K]

Answer:

shirt = $20

sweater = $35

Step-by-step explanation:

This question would be solved using simultaneous equation

Let the price of sweater be represented by a

Let the price of shirt be represented by b

The following equations can be derived from the question

2a + 4b = 150   equation 1

4a + 3b = 200   equation 2

Multiply equation 1 by 2

4a + 8b = 300    equation 3

Subtract equation 2 from 3

5b = 100

divide both sides of the equation by 5

b = 20

substitute for b in equation 1

2a + 4(20) = 150

2a + 80 = 150

collect like terms

2a = 150 - 80

2a = 70

divide both sides by 2

a = 35

Price of sweater = $35

Price of shirt = $20

4 0
3 years ago
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A spherical- shaped ball that has a radius of 4 inches is currently deflated.
galina1969 [7]

Answer:

I am pretty sure its B.

8 0
3 years ago
Jasmine’s race time was 34.287 minutes.round her race time to the nearest 10th of a minute
amm1812
Hi!

34.287 rounded to the nearest tenth is 34.290

This is because 7 is greater than 5, so we would round it to the cloest tenth that is slightly higher than 7. =)
7 0
3 years ago
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Answer:

For this problem t=0

4 0
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What is the nearest whole number to Square root(32+42) = ?
vodomira [7]

<em>Answer:</em>

<em>√81 = 9 </em>

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

<em>√(32+42) = √74</em>

<em>√64 < √74 < √81</em>

<em>       +10 ⇔ +7</em>

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6 0
3 years ago
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