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iragen [17]
3 years ago
10

Jackson has $1.50 in quarters and dimes. Let x represent the number of quarters and y represent the number of dime. Find the dom

ain and range of this situation.
Mathematics
1 answer:
QveST [7]3 years ago
8 0

Answer:

3 dimes

Step-by-step explanation:

Part A: 0.10x + 0.25 = 0.80 (dimes are 10 cents or 0.10 dollars, quarters are 0.25 dollars)

Part B: Plug in what you DO know and solve the one you DON’T:

0.10x + 0.25(2) = 0.80

0.10x + 0.50 = 0.80. Subtract 0.50 from both sides:

0.10x = 0.30 (Divide both sides by 0.10)

x = 3

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evablogger [386]

Answer:

H1 : μ < 1225

Step-by-step explanation:

The alternative hypothesis in carrying out a statistical test could be explained as a notion which aims to displace or rival an initial position, the null hypothesis.

When declaring an hypothesis, the statement compares the initial or population mean in the hypothesis statement and not the result or outcome of the sample statistic.

In the scenario above :

The null is of the notion that :

H0 : μ = 1225 ;

Hence, the stance of the alternative which is that the mean is lower or less will be written as :

H1 : μ < 1225

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3 years ago
How much is a $450 snowboard with 7.25% sales tax?
Savatey [412]

Answer:

$482.625 ≈ $482.63

Step-by-step explanation:

\frac{y}{450}: \frac{7.25}{100}

y · 100 = 450 · 7.25

100y = 3262.5

100y ÷ 100 = 3262.5 ÷ 100

y = 32.625

$450 + $32.625

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3 years ago
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tamaranim1 [39]
.07 cents of tax per dollar
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Step-by-step explanation:

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5/12

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