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oksian1 [2.3K]
3 years ago
13

A line with slope -2 and y-intercept 4 enter the equation of the line in slope intercept form.

Mathematics
1 answer:
Hitman42 [59]3 years ago
4 0
-2x + 4 = y because the slope intercept form is mx+b=y
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The sale price of an item is $180 after a 25% discount is applied. What is the original price of the item?
Valentin [98]
So
100%=original
25% discount
100-25=75
it is 180 sale
75%=180
find 100%

a hack is to recognize that 75/3 times 4=100 so
75%=180
divide 3
25%=60
times 4
100%=240


the real way is proportions
75:180 =100:x
75/180=100/x
multiply both sides by 180x
75x=18000
divide 75
x=240



origitnal price=$240
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