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xxMikexx [17]
3 years ago
10

Isaac is purchasing two pairs of shoes—one pair for $37.00 and the second pair for $42.00. The state sales tax applied to Isaac’

s bill is 7%. How much is Isaac’s total bill? Show your work SHOW UR WORK ?!?! whats the work PLS help
Mathematics
1 answer:
goldfiish [28.3K]3 years ago
7 0
37+42=79
7/100=0.07
79 x .07=5.53
79+5.53=
84.53
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Use the table to answer the question.
Akimi4 [234]

Step-by-step explanation:

You can choose one of the prices above to find the proportion.

\frac{2}{4}  =  \frac{2.30}{y}  \\ 2 \times y = 2.30 \times 4 \\ y = 2.30 \times 2 \\ y = 4.60

<h3>#CMIIW</h3>

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3 years ago
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Solve. <br> - 1/3b = 9<br><br> A. -3 <br> B. 3<br> C. - 27<br> D. 27
ruslelena [56]
-\dfrac{1}{3}b=9\ \ \ |multiply\ both\ sides\ by\ (-3)\\\\-3\cdot\left(-\dfrac{1}{3}b\right)=-3\cdot9\\\\\huge\boxed{b=-27}\leftarrow\boxed{C}
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mel-nik [20]
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5 0
3 years ago
Please help due tomorrow
mel-nik [20]

Answer: x= 2.5, y = 10

Step-by-step explanation:

<u><em>I'm going to assume that these photocopies are proportional in relations to each other.</em></u>

If they're proportional, you can set up two proportions:

1) \frac{x}{5} =\frac{3}{6} \\\\2) \frac{5}{y} =\frac{3}{6}

And cross-multiply:

1) 6x = 5*3 \\\\2) 3y = 5*6

Then solved for x and y:

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3 years ago
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Answer:

see explaination

Step-by-step explanation:

Here the null hypothesis is that the PCB survives against the alternate that the PCB 'does not survive'. The test says that the PCB will survice if it is classified as 'good'; or, it will not survive if it is classifies as 'bad'.

a. The Type II error is the error committed when a PCB which cannot actually survive is classified as 'good'.

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6 0
3 years ago
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