3 years ago

PLEASE HELP IM IN 4th grade

Mathematics

1 answer:

skad [1K]3 years ago

7 0

Answer:

30 feet

Step-by-step explanation:

a = l * w

Its a square so l and w are the same

x * x = 900

30 * 30 = 900

----------------

If you know about square roots

x = √900

x = 30

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20. What is the volume, in terms of r, for a cylindrical

inysia [295]

Step-by-step explanation:

Volume of cylindrical container

$= \pi {r}^{2} h \\ \\ = 3.14 \times ( {3.25)}^{2} \times 10 \\ \\ = 3.14 \times 10.5625 \times 10 \\ \\ = 331.6625 {cm}^{3} \\ \\ \approx \: 331.66 \: {cm}^{3}$

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4 years ago

The regular price of a shirt is $12.00.If Jason bought the shirt for 45 percent of the regular price,how much did he save?

ruslelena [56]

Answer:

$5.4

Step-by-step explanation:

45% of $12.00 = 45/100 x 12

= $5.4

Hence to get how much he saved, we have to deduct the percentage off from the cost price $12 -$5.4 = $6.6

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4 years ago

How do you find perimeter?

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3 0

2 years ago

Add 5/9+7/9 . Simplify the answer and write a mixed number

Step2247 [10]

Hello there!

First you had to solving by the fractions parts.

$\frac{5}{9}+\frac{7}{9}=\frac{12}{9}$

Then you reducing by the fraction parts of 12/9.

$\frac{12}{9}=\frac{4}{3}$

And finally, you simplify by the fraction parts of 4/3.

$\frac{4}{3}=1 \frac{1}{3}$

Solution by Formulas

Applying the fractions formula for addiction.

$\frac{(5*9)+(7*9)}{9*9}$

$\frac{45+63}{81}$

$=\frac{108}{81}$

Simplifying 108/81 and the answer is

$=1 \frac{1}{3}$

Hope this helps!

Thank you for posting your question at here on Brainly.

-Charlie

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4 years ago

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mr_godi [17]

$x-y=5\\
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4 years ago