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rusak2 [61]
3 years ago
9

Solve rational exponents x2/3=16

Mathematics
2 answers:
miv72 [106K]3 years ago
6 0

Answer: x=24

Step-by-step explanation:

First, we know that 2/3 of something is 16. So, we are going to find 1/3. To do this, we divide 16 by 2 because 2 is the numerator. We get 8 as our answer.

Next, now we have to find the full value. To do this, we need to multiply 8 by 3 to get 3/3 (our full number-answer). When you multiply 8 by 3, you get 24 as your answer.

Finally, finish the equation. Substitute x for 24, so the equation looks like this: (24) x 2/3 = 16.

Hope this helps!

Grace [21]3 years ago
6 0
Answer X=24 I think
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Ted bought a fishing pole for $35.99, and a pair of shorts for 14.99. He had a coupon for 25% off the shorts only. What was the
NeX [460]

Answer: I think it is 47.23


Step-by-step explanation: Because 25% of 14.99 = 11.2425 But 35.99+11.2425 dose not seem right so I pretty sure it would be 35.99+11.24= 47.23

-Alissa

Hopefully this is right.... sorry if it is wrong


4 0
3 years ago
Read 2 more answers
A candy manufacturer claims that the average weight of their individually wrapped candy is 3 grams. Sixty-four candy pieces were
Anon25 [30]

Answer:

t=\frac{2.8-3}{\frac{0.5}{\sqrt{64}}}=-3.2    

p_v =P(t_{(63)}  

Conclusion  

If we compare the p value and the significance level given \alpha=0.05 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, so we can conclude that the true mean is significantly lower than 3 grams at 5% of signficance.  

Step-by-step explanation:

Data given and notation  

\bar X=2.8 represent the sample mean

s=0.5 represent the sample standard deviation for the sample  

n=64 sample size  

\mu_o =3 represent the value that we want to test

\alpha=0.05 represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the true mean is lower than 3 grams, the system of hypothesis would be:  

Null hypothesis:\mu \geq 3  

Alternative hypothesis:\mu < 3  

If we analyze the size for the sample is > 30 but we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

We can replace in formula (1) the info given like this:  

t=\frac{2.8-3}{\frac{0.5}{\sqrt{64}}}=-3.2    

P-value

The first step is calculate the degrees of freedom, on this case:  

df=n-1=64-1=63  

Since is a one sided test the p value would be:  

p_v =P(t_{(63)}  

Conclusion  

If we compare the p value and the significance level given \alpha=0.05 we see that p_v so we can conclude that we have enough evidence to reject the null hypothesis, so we can conclude that the true mean is significantly lower than 3 grams at 5% of signficance.  

8 0
3 years ago
Answer this question correctly please and then I’ll mark you as a brainliest!
Studentka2010 [4]

Answer:


Step-by-step explanation:

1) 2 - (- 8) = 2 + 8 = 10


2) 2/5 + (- 1/5) = 2/5 - 1/5 = 1/5


3) We can find the common denominators through the least common multiple between the denominators:


4,12 | 2

2, 6 | 2

1, 3 | 3

1, 1 (2 × 2 × 3 = 12)


Then, 12 is the least common denominator.


4) 8 (1/4) + 10 (2/5) + 7 (5/8)

8 (1/4) = 4/4 + 4/4 + 4/4 + 4/4 + 4/4 + 4/4 + 4/4 + 4/4 + 1/4 = 33/4


10 (2/5) = 5/5 + 5/5 + 5/5 + 5/5 + 5/5 + 5/5 + 5/5 + 5/5 + 5/5 + 5/5 + 2/5 = 52/5


7 (5/8) = 8/8 + 8/8 + 8/8 + 8/8 + 8/8

+ 8/8 + 8/8 + 5/8 = 61/8


33/4 + 52/5 + 61/8


Employing the least common denominator:


4, 5, 8 | 2

2, 5, 4 | 2

1, 5, 2 | 2

1, 5, 1 | 5

1, 1, 1 (2 × 2 × 2 × 5 = 40)


(40 ÷ 4 × 33)/40 + (40 ÷ 5 × 52)/40 + (40 ÷ 8 × 61)/40

330/40 + 416/40 + 305/40

1051/40


This person ran about 26 Miles


I hope I helped you.



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Answer:

She will learn 15 appetizer recipes.

Step-by-step explanation:

Here's why........because 2 weeks equals 5 so if you divide 6 and 2 you will get 3 and multiply that by 5 you get 15.

8 0
3 years ago
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