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zavuch27 [327]
3 years ago
8

An item that was selling for $80 is reduced to $42. Find the percent decrease in

Mathematics
1 answer:
Westkost [7]3 years ago
3 0

Answer:

47.5%

Step-by-step explanation:

You have to first subtract 80 and 42 to find the decrease first. This is 38. Now, you have to divide this by the original number which is 80. So 38 divided by 80 is 0.475.

Now multiply this by 100.

You can easily move the decimal point to the right.

So you would get 47.5%

Hope this helped!

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Please help with this question
astraxan [27]

Answer:

x = -8/2

Step-by-step explanation:

To make the equation easier to work with, our first step will be to make all of our fractions have a common denominator. Both 2 and 4 are factors of 8, so that will be our common denominator.

Old Equation: 1/4x - 1/8 = 7/8 + 1/2x

New Equation (with common denominators): 2/8x - 1/8 = 7/8 + 4/8x

Now, we're going to begin to isolate the x variable. First, we're going to subtract 2/8x from both sides, eliminating the first variable term on one side completely.

2/8x - 1/8 = 7/8 + 4/8x

-2/8x                    -2/8x

__________________

-1/8 = 7/8 + 2/8x

We're one step closer to our x variable being isolated. Next, we're going to move the constants to the left side of the equation. To do this, we must subtract by 7/8 on both sides.

-1/8 = 7/8 + 2/8x

- 7/8  -7/8

______________

-1 = 2/8x

Our last step is to multiply 2/8x by its reciprocal in order to get the x coefficient to be 1. This means multiply both sides by 8/2.

(8/2)  -1 = 2/8x (8/2)

The 2/8 and 8/2 cancel out, and you're left with:

-8/2 = x

I hope this helps!

7 0
3 years ago
How to find the missing angle of a quadrilateral is the other angles are 123 degrees, 70 degrees, and 72 degrees?
Murrr4er [49]
123+70+72=265
the total is 360 so, 360-265=95 so 95 degrees
3 0
3 years ago
Please help<br><br> Combine like terms.<br> 9y + 5y - 3 = [? ]y + [ ]
almond37 [142]

Answer:

= 14y + ( – 3 )

I hope I helped you^_^

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2/3x = y -6 linear or nonlinear
djyliett [7]

Answer:linear

Step-by-step explanation:

If you go onto desmos and write the equation you get a straight line and it’s not curved

3 0
2 years ago
Which coupon provides better value? <br> A) $25 off <br> B) %25 off
krok68 [10]
25$ because if you bout something that was 25$ 25$ off would make it free but 25% off would make it 6.25
7 0
2 years ago
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