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tekilochka [14]
3 years ago
10

Help me with number 9 please find the answer for A and B

Mathematics
1 answer:
VMariaS [17]3 years ago
5 0
B+133=180
b=47
and 80+a+b=180
80+a+47=180
a=180-127
a=53
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What is the sale price rounded to the nearest dollar?
AlekseyPX

Answer:

317

Step-by-step explanation:

1st markdown

original price:440

Markdown percent  20%

The new price = original price - original price* markdown percent

                         = 440 * 440*20%

Changing the percent to a decimal

                        = 440 * 440*.20

                        = 440-88

                         =352

New selling price = 352

2nd markdown

original price:352

Markdown percent  10%

The new price = original price - original price* markdown percent

                         = 352 * 352*10%

Changing the percent to a decimal

                        = 352 * 352*.10

                        = 352-35.20

                         =316.80

New selling price = 316.80

Rounding to the nearest dollar 317

7 0
3 years ago
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Natalija [7]
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Answer:

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Step-by-step explanation:

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F(x) =\frac{x-a}{b-a}, a \leq x \leq b

And for this case if we use this formula and the complement rule we have:

P(X>30)= 1-P(X

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