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3 years ago

How can you determine is a math question is an equation or an expression?

Mathematics

2 answers:

Tatiana [17]3 years ago

5 0

An equation will have an answer at the end like an equal sign. (Ex; 20+20=40)

An expression will NOT have an answer. (Ex; 20+20)

Mars2501 [29]3 years ago

5 0

The difference between an equation and expression in maths is that an expression is a combination of numbers, variables and symbols to be calculated. An equation contains expressions that are separated by an equals sign.

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Billy is 5 2/3 feet tall. Maris is 4 11/12 feet tall. How much taller is billy

3241004551 [841]

3/4 feet

You can set this up as an equation and solve

$5\frac{2}{3}-4\frac{11}{12} =5\frac{8}{12} -4\frac{11}{12} =4\frac{20}{12} -4\frac{11}{12}=\frac{9}{12} =\frac{3}{4}$

3 0

3 years ago

Whats the Diameter? I really need help understanding this

Arada [10]

Answer:

1.8 in.

Step-by-step explanation:

Hi there!

<u>1) Determine the radius of the base</u>

$V=\frac{1}{3} \pi r^2h$ where r is the radius of the base and h is the height of the cone

Plug in the known values (h=4.2, V=3.6)

$3.6=\frac{1}{3} \pi r^2(4.2)$

Isolate r; divide both sides by 4.2

$\frac{3.6}{4.2} =\frac{1}{3} \pi r^2\\\frac{6}{7} =\frac{1}{3} \pi r^2$

Multiply both sides by 3

$\frac{6}{7}*3 =\pi r^2\\\frac{18}{7}=\pi r^2$

Divide both sides by π

$\frac{18}{7\pi }=r^2$

Take the square root of both sides

$\sqrt{\frac{18}{7\pi }} =r$

<u>2) Determine the diameter</u>

Now that we have the radius, to find the diameter, multiply r by 2:

$d=\sqrt{\frac{18}{7\pi }}*2\\d=1.8$

Therefore, the diameter is 1.8 in. when rounded to the nearest tenth.

I hope this helps!

3 0

3 years ago

Read 2 more answers

Select all that apply.

Mashutka [201]

4% is not equivalent to 40%
0.4 is equivalent to 40%. Just move the decimal two places to the right.
2/5 is equivalent to 0.4, which in turn is equivalent to 40%. 2 divided by 5=0.4
The answers are all but 4%

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3 years ago

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B. At most 26 is the answer

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3 years ago

The price of a stock was 325$ a share.the price of the stock went down 25$ each week for 6 weeks . What was the price of that st

hichkok12 [17]

The price of the stock at the end of 6 weeks was 175$

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3 years ago

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