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astraxan [27]
2 years ago
12

The price of a sweater was reduced from $20 to $12. By what percentage was the price of the sweater reduced

Mathematics
2 answers:
Wittaler [7]2 years ago
8 0

Step-by-step explanation:

Formula:. old-new/old x 100

20-12 =6 6/20= .3 .3

x100 = 30%

kirill [66]2 years ago
4 0

Answer:

The price was decreased by 40%

Step-by-step explanation:

Take the original price and subtract the new price

20-12 = 8

Divide by the original price

8/20 = .4

Change to a percent

40 %

The price was decreased by 40%

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8 + 3x=29 +2x <br> I need answer ASAP
borishaifa [10]

Answer:

x = 21

Step-by-step explanation:

8 + 3x = 29 + 2x

8 + 3x - 2x = 29

8 + x = 29

x = 29 - 8 = 21

x = 21

3 0
2 years ago
Which is the equation in slope-intercept form for the line that passes through (3, 7)
quester [9]

Answer:

y =  -  \frac{5}{3} x + 12

Step-by-step explanation:

First, rewrite the given equation in the form of y=mx+c.

m is the gradient while c is the y-intercept.

3x-5y=8

5y= 3x -8

y =  \frac{3}{5} x -  \frac{8}{5}

Thus, the gradient of the given equation is ⅗.

The product of the gradients of perpendicular lines is -1.

(gradient of line)(⅗) = -1

gradient of line= -1 ÷⅗

gradient of line= -  \frac{5}{3}

y =  -  \frac{5}{3} x + c

To find the value of c, substitute a coordinate.

When x=3, y=7,

7 =  -  \frac{5}{3} (3) + c

7= -5 +c

c= 7+5

c= 12

Hence, the equation of the line is y =  -  \frac{5}{3} x + 12.

6 0
3 years ago
I need help you don't have to explain the answer I just need it, thank you!
Yuki888 [10]

Answer:

j = 38

Step-by-step explanation:

j/-2 + 7 = -12

first subtract 7 from both sides

j/-2 = -19

then multiply both sides by -2

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7 0
2 years ago
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3 years ago
Which of the following represents the set of integers greater than or equal to -5?
Ann [662]
<span>B. {-5,-4,-3…. }
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3 years ago
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