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4 years ago

A freight carrier charges $0.57 for the first ounce plus an additional $0.32 for every

Mathematics

1 answer:

Rzqust [24]4 years ago

7 0

Answer:

2.2084384 in cents, and 22.084384 in dollars

Step-by-step explanation:

Apologies in advance if I've got something wrong, it's currently 12:08 at night for me njnhrj

First we'd like to figure out how much we have after calculating the weight left over after charging for the first ounce.

7.90137-1=6.90137

Multiply by .32, and you've got your sum in cents; 2.2084384‬

Divide this by 0.1 and you've got it in dollars; 22.084384

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Jeffery bought 203 sheets of stickers. Each sheet has a dozen stickers. He gave away 907 stickers to his family on valentines da

fomenos

Jeffrey has 1529 stickers remaining

<h3>Further Explanation</h3>

From the problem above we know that

Jeffery bought 203 sheet of stickers

Each sticker has a dozen stickers or equal to 12 pcs stickers

He gave away 907 stickers

How many stickers does Jeffery have now?

<u>Step by step explanation</u>

First, we need to calculate the total stickers that Jeffery has, we are going to use the area model methods (see the attachment)

$=\boxed {203 \times12\ }\\ =\boxed {(200+3) \times(10+2)\ }\\ =\boxed {(200 \times10)+(200 \times2) + (3 \times10)+(3 \times2)\ }\\ =\boxed {2000+400+30+6\ }\\ =\boxed {2436\ }$

Total stickers that Jeffery has is 2436 pcs of stickers, he gave away 907. Total remaining stickers is

$=\boxed {2436-907\ }\\ =\boxed {1529\ }$

2436

1529

Now, Jeffery has 1529 pcs of stickers.

<h3>Learn more</h3>

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Keywords: multiplication, standard algorithm, area model, three digits multiplication, big number multiplication, additional, subtraction, math expression, substraction of three digits numbers

3 0

4 years ago

Read 2 more answers

In a sample of 400 voters, 360 indicated they favor the incumbent governor. The 95% confidence interval of voters not favoring t

Andru [333]

Answer:

0.071 to 0.129

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

In a sample of 400 voters, 360 indicated they favor the incumbent governor. This means that 400-360 = 40 do not favor the incumbent governor. So $n = 400, \pi = \frac{40}{400} = 0.1$