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MrMuchimi
3 years ago
8

Tonya runs 8 kilometers in 60 minutes at this rate how long would it take her to run 2 kilometers

Mathematics
1 answer:
nekit [7.7K]3 years ago
5 0
It will take her 15 minutes to run 2 kilometers
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What is 3/18 simplified
trasher [3.6K]
All you have to do is divide the numerator and the denominator by 3 and you get your answer which is 1/6
4 0
3 years ago
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A direct mail appeal for contributions from a university's alumni is considered effective if more than 15% of the alumni provide
Ymorist [56]

Answer:

We want to verify if the true proportion of the alumni provide monetary contributions is higher than 0.15 (Alternative hypothesis), the system of hypothesis are.:  

Null hypothesis:p \leq 0.15  

Alternative hypothesis:p > 0.15  

And the best answer for this case would be:

Ha: p > 0.15

Step-by-step explanation:

Information given

n=250 represent the random sample taken

X=40 represent the number of people on the alumni mailing list

\hat p=\frac{40}{250}=0.16 estimated proportion of people on the alumni mailing list  

p_o=0.15 is the value to verify

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to verify if the true proportion of the alumni provide monetary contributions is higher than 0.15 (Alternative hypothesis), the system of hypothesis are.:  

Null hypothesis:p \leq 0.15  

Alternative hypothesis:p > 0.15  

And the best answer for this case would be:

Ha: p > 0.15

3 0
3 years ago
Which are equivalent expressions?
FromTheMoon [43]
Equivalent Expressions are expression that have the same value on both side of the equal sign.

Expression 1:
First simplify both sides of the expression. One of them are already fully simplified.

8x-4y=4(-y+2x)
8x- 4y=-4y+8x

This expression IS an equivalent expression.

Expression 2:
Do the same as in expression one (we will be simplifying all of the expressions).

8x+4y=4(2x+y)
8x+4y=8x+4y

This expression IS an equivalent expression.

Expression 3:

4x-8y=4(-x+2y)
4x-8y=-4x+8y

This expression IS NOT an equivalent expression.

Expression 4:

4x+8y=4(x+2y)
4x+8y=4x+8y

This expression IS an equivalent expression.

Expression 5:

4x+8y=4(8xy)
4x+8y=32xy

This expression IS NOT an equivalent expression.
6 0
3 years ago
Right and solve a proportion For this statement: 16 is to 10 as what number is to 25
Vladimir79 [104]

Answer:

40

Step-by-step explanation:

<h2><u>Ratios </u></h2>

16 is to 10 as what number is to 25

this makes use of ratios

16    :    10

x      :    25

hence we can make use of cross multiplication

10x = 16 * 25

10x = 400

<u>x = 40</u>

<u />

<h3><u>the number is 40</u></h3>
8 0
3 years ago
If anyone knows the answer plz tell me, thank you
andrezito [222]

Answer:

A

Step-by-step explanation:

plug it in

(-3)^2+(4)^2=9+16=25

4 0
3 years ago
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