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3 years ago

What's one way to check the answer to 5×6=30? a.30÷6=5 b.30×6=5 c.30×5=6 d.5÷6=30

Mathematics

2 answers:

Norma-Jean [14]3 years ago

7 0

Answer:

Option a -30÷6=5

Step-by-step explanation:

Given : Expression 5×6=30

Now , we check one by one which one gives the same result or a one way to answer the expression

a. 30÷6=5 is the one way because

5×6=30

⇒5=30÷6 which is true

b. 30×6=5 is not the correct expression because 30×6=180 not 5

c. 30×5=6 is not the correct expression because 30×5=150 not 6

d. 5÷6=30 is not the correct expression because 5÷6=0.833 not 30

Therefore, one way to check the answer is option a

VikaD [51]3 years ago

3 0

Solve is in the picture

Good luck :)

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BaLLatris [955]

Answer:

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Step-by-step explanation:

Since the height isn't given, we assume it to be "h" (of cylinders). And the answer will be in terms of "r" and "h".

The area of 1 arm is given, so the area of 2 arms would be:

$A_{arm}=2*(\frac{1}{2}r*\frac{1}{3}r*2r)=\frac{2r^3}{3}$

Now, area of 2 cylinders would be the formula:

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So, total area is A_arm PLUS A_cyl. The fractional area the arms are would be gotten by taking expression A_arm divided by A_total.

Shown below:

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We simplify further:

$\frac{\frac{2r^3}{3}}{2\pi r^2 h + \frac{2r^3}{3}}\\=\frac{\frac{2r^3}{3}}{2r^2(\pi h + \frac{r}{3})}\\=\frac{r}{3(\pi h + \frac{r}{3})}\\=\frac{r}{3\pi h+r}$

THis is the answer.

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3 years ago

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Answer:

Step-by-step explanation:

Given that the total number of people protesting is 81. These people are either male - Student or non student or Females (student or non students)

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2 years ago

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Answer:

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3 years ago

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3 years ago