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2 years ago

A 17.5 gallon tank is 1/3 full. How many more gallons of water does it take to fill the tank?

2 answers:

6 0

Answer: it will take 35 more gallons.
Reasoning: multiply 17.5 by 3, then get the answer (52.5), finally subtract 17.5 by 52.5 and you should see how many more gallons needed. <3

damaskus [11]2 years ago

3 0

Answer:11.66 gallons to fill the tank

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I need to find and write the equation for the problem.

Julli [10]

0.8p - 50 < = 150
0.8p < = 150 + 50
0.8p < = 200
p < = 200/0.8
p < = 250

the reason I set it up this way is because when it is 20% off, u r actually paying 80% of the original price (p)....80% of the original price is written as 0.8p...then u subtract ur 50 dollar discount coupon...- 50.....and if all she can spend is 150....it would be less then or equal to 150. So the most she can spend on the phone is 250

7 0

2 years ago

Read 2 more answers

Find the inverse of the function.

asambeis [7]

Answer:

A) $f^{-1}(n)= (n+2)^3$

Step-by-step explanation:

$f(n) = \sqrt[3]{n} -2$

$y = \sqrt[3]{n} -2$

$y = n^{1/3}-2$

$n = y^{1/3} -2$

$n + 2 = y^{1/3}$

$y = (n + 2) ^3$

$f^{-1}(n) = (n + 2)^3$

Hope this helps!

7 0

2 years ago

Read 2 more answers

Write a recursive rule for the sequence.<br><br> 7, 6, 13, 19, 32, ...

Zinaida [17]

Answer:

Step-by-step explanation:

+7-1

4 0

3 years ago

In preparation for an earnings report, a large retailer wants to estimate p= the proportion of annual sales

mr Goodwill [35]

Using the z-distribution, it is found that the 95% confidence interval for the proportion of sales that occured in December is (0.1648, 0.2948).

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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

In which:

$\pi$ is the sample proportion.

z is the critical value.

n is the sample size.

In this problem, we have a 95% confidence level, hence $\alpha = 0.95$ , z is the value of Z that has a p-value of $\frac{1+0.95}{2} = 0.975$ , so the critical value is z = 1.96.