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3 years ago

15

if juanita and her friends made nine friendship bracelets in three hours how many could they make in 15 hours? which proportion

would be used to solve this problem

2 answers:

tangare [24]3 years ago

4 0

The answer 45 bracelets

tigry1 [53]3 years ago

4 0

3 divide by 15 is 5 so 5 divide by 9 is 1.8 your answer is 1.8

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Solve the equation. Then check your solution

kondaur [170]

Answer:

Option <u>B </u>is correct i.e. <u>2</u><u>1</u>

Step-by-step explanation:

In the question we're provided with an equation that is :

v/7 = 3

And we are asked to find the solution for the equation .

<u>Solution</u><u> </u><u>:</u><u> </u><u>-</u>

<u> $\longrightarrow \: \frac{v}{7} = 3$ </u>

Multiplying by 7 on both sides :

$\longrightarrow \: \frac{v}{ \cancel{7} }\times \cancel{7} = 3 \times 7$

On further calculations , we get :

$\longrightarrow \: \blue{\boxed{v = 21}}$

<u>Therefore</u><u> </u><u>,</u><u> </u><u>solution</u><u> </u><u>for</u><u> equation</u><u> </u><u>is </u><u>2</u><u>1</u><u> </u><u>.</u><u>That </u><u>means</u><u> </u><u>option </u><u>B </u><u>is </u><u>the </u><u>correct</u><u> answer</u><u>.</u>

<u>Verifying</u><u> </u><u>:</u>

We are verifying our answer by substituting value of v in the equation given in question :

$\longrightarrow \: \frac{v}{7} = 3$

Putting value of v :

$\longrightarrow \: \cancel{\frac{21}{7}} = 3$

By dividing 21 with 7 , we get :

$\longrightarrow \:3 = 3$

$\longrightarrow \: L.H.S=R.H.S$

$\longrightarrow \: Hence , \: Verified.$

<u>Therefore</u><u> </u><u>,</u><u> </u><u>our </u><u>answer</u><u> is</u><u> valid</u><u> </u><u>.</u>

<h2><u>#</u><u>K</u><u>e</u><u>e</u><u>p</u><u> </u><u>Learning</u></h2>

3 0

2 years ago

Read 2 more answers

If f(x)=3x-7, find f(x)=2

Arisa [49]

Answer:

x = 2

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Lucy Baker is analyzing demographic characteristics of two television programs, American Idol (population 1) and 60 Minutes (pop

creativ13 [48]

Answer:

Alternative hypothesis: $\mu_1 -\mu_2 \neq 0$

Or in the alternative way would be:

Alternative hypothesis: $\mu_1 \neq \mu_2$

Step-by-step explanation:

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

On this case the claim that they want to test is: "The means for the two groups (American Idol and 60 Minutes) is the same". So we want to check if we have significant differences between the two means, so this needs to be on the alternative hypothesis and on the null hypothesis we need to have the complement of the alternative hypothesis.

Null hypothesis: $\mu_1 -\mu_2 = 0$

This null hypothesis can be expressed like this:

Null hypothesis: $\mu_1 = \mu_2$

Alternative hypothesis: $\mu_1 -\mu_2 \neq 0$

Or in the alternative way would be:

Alternative hypothesis: $\mu_1 \neq \mu_2$

4 0

3 years ago

Whitch number 4,5,6 is a solution of x+5>10

Alex73 [517]

: 6

:

- i just plugged in every number in.
4 + 5 > 10
9 > 10? nope.

5+5 > 10
10 > 10 ? nope.

6+5 > 10
11 > 10? YES.

6 0

3 years ago

Which property justifies the procedure used to eliminate fractions and decimals from equations?

igor_vitrenko [27]

By multiplying both sides of an equation by a number, you can eliminate all decimals and fractions, so the answer is C.

4 0

3 years ago