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3 years ago

3 over 5 + 21 over 5 =?

Mathematics

2 answers:

Bas_tet [7]3 years ago

8 0

Answer:

24/5

Step-by-step explanation:

they both have the same denominator, so we only add the numerators

kicyunya [14]3 years ago

7 0

4.8

Step-by-step explanation:

3 over 5+21 over 5=4.8

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It takes a hose 4 minutes to fill a rectangular aquarium 11 inches long, 12 inches wide and 13 inches tall. How long will

Softa [21]

Answer:

38 minutes

Step-by-step explanation:

Volume of the first aquarium:

V = lwh = 11*12*13 = 1716 in³

Volume of the second aquarium

V = 21*24*32 = 16128 in³

The second aquarium is:

16128/1716 = 9.4 times bigger by volume

It will take

4*9.4 ≈ 38 minutes

to fill this aquarium

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3 years ago

Which of the following is equal to the expression below?

choli [55]

Answer: OPTION C.

Step-by-step explanation:

By definition:

$a^{1/n}=\sqrt[n]{a}$

You must descompose the numbers 160 and 243 into their prime factor:

$160=2*2*2*2*2*5=2^{5}*5$

$243=3*3*3*3*3=3^{5}$

Simplify the expression, then you obtain the following result:

$\sqrt[5]{2^{5}*5*3^{5}}=2*3\sqrt[5]{5}=6\sqrt[5]{5}$

The answer is the option C.

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3 years ago

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OlgaM077 [116]

Answer:

1/4

Step-by-step explanation:

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3 years ago

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Vlad [161]

Answer:

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Step-by-step explanation:

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Geometry Homework Question

mash [69]

Answer:

Distance is 8.485

Midpoint is (3,4)

Step-by-step explanation:

Use the points (-1,7) and (5,1)

Insert them into the equation and solve for D

$D=\sqrt{x} ((5-(-1))^2 + (1-7)^2)\\D=\sqrt{x} ((6)^2 + (-6)^2)\\D=\sqrt{x} (36+36)\\D=\sqrt{x} (72)\\D=8.485$

Insert points into second equation to find midpoint

$(\frac{_1+5}{2} , \frac{7+1}{2}) \\(\frac{6}{2} ,\frac{8}{2} )\\(3,4)$

7 0

3 years ago