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3 years ago

Rick says to find 2x5 he can use counting by 5s: 5,10,15,20,25 Explain what he did wrong

Mathematics

2 answers:

Doss [256]3 years ago

8 0

Well , he skip counted 5 times. So , he needs to skip count 2 times by 5. Just like 2x5.

snow_lady [41]3 years ago

7 0

He counted too far. 5 x 2 is 10. He counted up to 25 which is 5 x 5, past what he is looking for.

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ipn [44]

Answer:

c) H0 : p = 5.8%

H1 : p > 5.8%

Step-by-step explanation:

At the null hypothesis, we test that the percentage is equal to a certain value. At the alternate hypothesis, we have a test about this percentage, if it is more, less, or different from the tested value.

A psychologist claims that more than 5.8 percent of the population suffers from professional problems due to extreme shyness

At the null hypothesis, we test if the percentage is 5.8%

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At the alternate hypothesis, we test if this percentage is more than 5.8%. So

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This means that the correct answer is given by option c.

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netineya [11]

7/5h+3/5h-2=7
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zubka84 [21]

Answer:

$\boxed{\bold{v \ = \ \frac{36}{7}}}$

Step-by-step explanation:

Subtract v from both sides

$\bold{v-4-v=v+2+7v-42-v}$

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$\bold{-4=2+7v-42}$

Switch sides

$\bold{2+7v-42=-4}$

Group like terms

$\bold{7v+2-42=-4}$

Subtract the numbers: 2 - 42 = -40

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Add 40 to both sides

$\bold{7v-40+40=-4+40}$

Simplify

$\bold{7v=36}$

Divide both sides by 7

$\bold{\frac{7v}{7}=\frac{36}{7}}$

Simplify

➤ $\bold{v=\frac{36}{7}}$

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