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3 years ago

5

Ramon earns $1,840 each month and pays $53.10 on electricity. To the nearest tenth of a percent, what percent of Ramon's earning

s are spent on electricity each month?

1 answer:

Tomtit [17]3 years ago

8 0

2.9%

You can find this by dividing $53.10 by $1,840.

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Pedro thinks that he has a special relationship with the number 3. In particular, Pedro thinks that he would roll a 3 with a fai

anyanavicka [17]

Answer:

p value = 0.3122

Step-by-step explanation:

Given that Pedro thinks that he has a special relationship with the number 3. In particular,

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Or proportion p = 0.1667

Pedro claims that this probability is more than 0.1667

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where P is the sample proportion.

b) n=30 and $P = 6/30 =0.20$

Mean difference = $0.2-0.1667=0.0333$

Std error for proportion = $\sqrt{\frac{p(1-p)}{n} } \\=0.0681$

Test statistic Z = p difference/std error = 0.4894

p value = 0.3122

p >0.05

So not significant difference between the two proportions.

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Shay and Nadine solve this problem in two different ways. You have $25 in your bank account. You make $7 per hour babysitting. H

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The answer to this problem is 25

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Nina goes to the neighborhood store to buy 14 rolls of toilet paper. If she spent $20.02 in all for her purchase, how much does

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Answer:

Each roll is $1.43.

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Trapezoid QRST has two right angles. A 5-in.altitude can be drawn dividing QRDT into a rectangle and an isosceles right triangle

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Answer:

The area of the trapezoid is 57.5 square inches

Step-by-step explanation:

we know that

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see the attached figure to better understand the problem

step 1

The area of rectangle is given by the formula

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we have

$RD=5\ in$ ----> altitude

$QR=9\ in$

substitute

$A=((9)(5)=45\ in^2$

step 2

Find the area of the isosceles right triangle

The area of triangle is given by the formula

$A=\frac{1}{2}(RD)(DS)$

we have

$RD=DS=5\ in$ ---> because is an isosceles triangle

substitute

$A=\frac{1}{2}(5)(5)=12.5\ in^2$

step 3

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Which expression is equivalent to this expression?

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Answer:

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