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3 years ago

When x = 8, y = 14. Find y when x = 24.

Mathematics

2 answers:

andrew11 [14]3 years ago

6 0

Answer:

Also read the problem carefully to determine if there are any other changes in the inverse ... Example 1 – If x varies inverse as y, and x = 7 when y = 3, find y when x = 9. ... If the volume is 32 cubic centimeters at a pressure of 8 pounds, find the ...

Step-by-step explanation:

liq [111]3 years ago

4 0

y = 42 is the correct answer

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How would you find four points using an equation?<br><br> Use this as an example...<br> y = 40x + 30

Artemon [7]

Plug in random values for x and find y value

assume x = 10 then y = 430

Express as ordered pair:(10,430)

8 0

2 years ago

I got c which is 100 but I don’t know how jerry got A

Anna007 [38]

Choice C is the correct answer because

$\frac{(6+2)^3-12}{5}\\\\\frac{(8)^3-12}{5}\\\\\frac{512-12}{5}\\\\\frac{500}{5}\\\\100\\\\$

So in short, $\frac{(6+2)^3-12}{5}=100\\\\$

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The mistake Jerry likely made was that he only cubed the 2 and didn't realize the 6 was part of that cubing process. It seems he didn't add first and decided to cube before adding.

This is probably what steps Jerry did

$\frac{6+2^3-12}{5}\\\\\frac{6+8-12}{5}\\\\\frac{14-12}{5}\\\\\frac{2}{5}\\\\$

But as mentioned, those steps are incorrect because the 6 is part of the cubing operation. In other words, Jerry should have added the 6+2 first before cubing afterward (due to PEMDAS determining the order of operations).

Or you could think of it like this

$\frac{(6+2)^3-12}{5}\\\\\frac{(6+2)(6+2)(6+2)-12}{5}\\\\\frac{(8)(8)(8)-12}{5}\\\\\frac{512-12}{5}\\\\\frac{500}{5}\\\\100$

4 0

2 years ago

How many pints are in 1 gallon?

Vesnalui [34]

Answer: 8

Step-by-step explanation:

3 0

2 years ago

A store charges $32 to print 80 greeting cards and $0.33 for each additional greeting card

Crazy boy [7]

32 + 0.33c = p

where c is every card more than 80 (so if you want 82 card c = 2)
and p is the total price

8 0

3 years ago

Read 2 more answers

The contents of a sample of 26 cans of apple juice showed a standard deviation of 0.06 ounces. We are interested in testing to d

NikAS [45]

Answer:

Option b. should not be rejected

Step-by-step explanation:

We are given that the contents of a sample of 26 cans of apple juice showed a standard deviation of 0.06 ounces.

We have to test whether the variance of the population is significantly more than 0.003, i.e.;

Null Hypothesis, $H_0$ : $\sigma$ = $\sqrt{0.003}$

Alternate Hypothesis, $H_1$ : $\sigma > \sqrt{0.003}$

The test statistics used here for testing variance is;

T.S. = $\frac{(n-1)s^{2} }{\sigma^{2} }$ ~ $\chi^{2}__n_-_1$

where, s = sample standard deviation = 0.06

n = sample size = 26 cans

So, Test statistics = $\frac{(26-1)0.06^{2} }{0.003 }$ ~ $\chi^{2}__2_5$

= 30

So, at 5% level of significance chi square table gives critical value of 37.65 at 25 degree of freedom. Since our test statistics is less than the critical so we have insufficient evidence to reject null hypothesis.

Therefore, we conclude that null hypothesis should not be rejected and variance of population is 0.003.

5 0

3 years ago