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3 years ago

What is the anwser to this equation? 36=15+7x

Mathematics

2 answers:

deff fn [24]3 years ago

7 0

Answer:

x = 3

Step-by-step explanation:

Subtract 15 from each side, so it now looks like this: 21 = 7x
Divide each side by 7 to cancel out the 7 next to x. It should now look like this: 3 = x

I hope this helps!

Vaselesa [24]3 years ago

6 0

Answer:

$\huge{ \fbox{ \text{x = 3}}}$

Step-by-step explanation:

$\star{ \sf{ \: 36 = 15 + 7x}}$

$\text{Step \: 1 \: : Swap \: the \: side \: of \: the \: equation}$

$\longmapsto{ \sf{15 + 7x = 36}}$

$\text{Step \: 2 \: : Move \: 15 \: to \: right \: hand \: side \: and \: change \: it's \: sign}$

$\longmapsto{ \sf{7x = 36 - 15}}$

$\text{Step \: 3 \: : Subtract \: 15 \: from \: 36}$

$\longmapsto{ \sf{7x = 21}}$

$\text{Step \: 4 \: : Divide \: both \: sides \: by \: 7}$

$\longmapsto{ \sf{ \frac{7x}{7} = \frac{21}{7} }}$

$\text{Step \: 5 \: : Calculate}$

$\longmapsto{ \sf{x = 3}}$

The value of x is 3

Hope I helped!

Best regards! :D

~ $\text{TheAnimeGirl}$

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Answer:

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Step-by-step explanation:

In this question, we are concerned with calculating the time taken for a loan om an interest to be paid back

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I = PRT/100

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3 years ago

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Step-by-step explanation:

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Type ni xi si

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To find - a. Formulate the above in terms of a hypothesis testing problem.

b. Give the test statistic and its reference distribution (under the null hypothesis).

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Proof -

a.)

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H1 : There is no significant difference between mean conductivity for the graded concrete and mean conductivity for the no fines concrete.

Test statistic :

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