3 years ago

How did I get the answer to these two problems

Mathematics

1 answer:

saveliy_v [14]3 years ago

6 0

You already have the answer

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A store is having a sale. You want a pair of jeans that are $90 and a shirt for $50. They are both on sale for 40% off. The tax

gavmur [86]

Answer: 59.92

Step-by-step explanation:

90 + 50 = 140

140 - 40% = 56

56 + 7% = 59.92

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3 years ago

What does y= 3x - 2 equal?

cestrela7 [59]

THE ANSWER WOULD BE X=2/3

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3 years ago

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Melanie's room measures 10 ft by 12 ft. Her rug covers 90 ft². Explain how to determine the percent of floor covered by the rug.

Inessa [10]

$\huge \bf༆ Answer ༄$

Here's the solution ~

Area of floor is ;

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:10 \times 12$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:120 \: ft {}^{2}$

Area covered by rug is ;

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:90 \: ft {}^{2}$

So, the percentage of floor covered by rug is ~

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \: \dfrac{90}{120} \times 100$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \: \dfrac{3}{4} \times 100$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:3 \times 25$

${ \qquad{ \sf{ \dashrightarrow}}} \: \: \sf \:75 \%$

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2 years ago

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Suppose a candidate for public office is favored by only 48% of the voters. if a sample survey randomly selects 2500 voters, the

Drupady [299]

Mean=0.48
standard deviation=0.01
thus using the z-score:
P(x>0.5) we shall have the following:
z=(0.5-0.48)/0.01=2
thus
P(x>0.5)
=1-P(x<0.5)
=1-P(z<2)
=1-0.9772
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3 years ago

Write the augmented matrix for the following system of equations. y + 2x = 0 -3x + 2y = -2

beks73 [17]

Answer:

sorry never seen this

Step-by-step explanation:

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3 years ago