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3 years ago

Help with math homework!

Mathematics

2 answers:

Natalka [10]3 years ago

8 0

Answer:

93 $\frac{24}{27}$

Step-by-step:

86 + 7 = 93

The 24 denominator stays the same and just add the numerators:

$\frac{14}{24}$ + $\frac{13}{24}$

= 93 $\frac{24}{27}$

*also 14 + 13 does not equal 24, its just closest to one of the choices*

vodka [1.7K]3 years ago

5 0

Answer:

94 1/8

Step-by-step explanation:

https://www.hackmath.net/en/calculator/fraction?input=86+14%2F24+%2B+7+13%2F24&submit=Calculate

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URGENT: PLEASE HELP!

vazorg [7]

To solve this problem, we are going to set up an equation. However, first we need to convert the percentages to decimals by dividing by 100.

15% = 0.15 , 7.5% = 0.075

Now, we should substitute in our given information into our equation and let our unknown value be equal to the variable x.

0.15(500) = 0.075x

Then, we should simplify our equation by multiplying together the two factors on the left side of the equation.

75 = 0.075x

Finally, we should divide both sides of the equation by 0.075 to get the variable x alone.

x = 1000

Therefore, your answer is 1000.

Hope this helps!

4 0

3 years ago

Read 2 more answers

The bear was chosen

cestrela7 [59]

Answer:

it was chosen 9 more times

Step-by-step explanation: i had this on my quiz

6 0

2 years ago

The value of the surface area (in square centimeters) of the cone is equal to the value of the volume (in cubic centimeters) of

Dovator [93]

Answer:

The height of the cone is 10.9 cm

Step-by-step explanation:

step 1

Find the height of the cone

Applying the Pythagoras Theorem

$12^{2}=5^{2}+h^{2}$

$144=25+h^{2}$

$h^{2}=144-25$

$h^{2}=119$

$h=10.9\ cm$

therefore

The height of the cone is 10.9 cm

6 0

2 years ago

The graph of a function is shown. Which function is represented by the graph?

Westkost [7]

Answer: D

Step-by-step explanation:

d should represent the graph

3 0

2 years ago

A group of 54 college students from a certain liberal arts college were randomly sampled and asked about the number of alcoholic

aliya0001 [1]

Answer:

P-value = 0.4846

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 4.73

Sample mean, $\bar{x}$ = 4.35

Sample size, n = 51

Alpha, α = 0.05

Sample standard deviation, s = 3.88

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 4.73\\H_A: \mu \neq 4.73$

We use Two-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{4.35 - 4.73}{\frac{3.88}{\sqrt{51}} } = -0.699$

Now, $z_{critical} \text{ at 0.05 level of significance } = \pm 1.96$

We can calculate the p-value with the help of standard normal table.

P-value = 0.4846

Since the p-value is higher than the significance level, we fail to reject the null hypothesis and accept it.

We conclude that this college has same drinking habit as the college students in general.

7 0

3 years ago