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3 years ago

Pls help i really need a math professional im struggling.

Mathematics

2 answers:

faltersainse [42]3 years ago

4 0

Answer:

Step-by-step explanation:

16/x = 80/100

16/x because 16 is your part and you are trying to find your whole (x)

80 is your part and 100 is your whole (this is from percent)

Cross multiply:

1600 = 80x

1600/80 = x

x = 20

Sedaia [141]3 years ago

3 0

Step-by-step explanation:

16×100÷80

=20

THE TOTAL IS 20

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11111nata11111 [884]

D.2y+3 i think is the answer

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3 years ago

Use the distributive property to multiply -3(-2 3/10). A. (-3)(-2) + (-3) (-3/10) B. (-3)(-2) + (-3/10) C. (3)(3/10) + (-3/10) D

kakasveta [241]

Answer:

$A.\ (-3)(-2) + (-3)(3/10)$

Step-by-step explanation:

Given

$-3(-2 - 3/10)$

Required

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$-3(-2 - 3/10)$

Apply Distributive Property;

This simply means that; we expand the bracket;

So, we have;

$= (-3)(-2) + (-3)(3/10)$

From the list of given options, option A answers the question

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3 years ago

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An aquarium has a length of n^ 2 +2 inches, a height of n + 5 inches, and a width of 10 inches. What is the volume, in cubic inc

kodGreya [7K]

The formula of a volume of a rectangle prism:

$V=lwh$

l - length

w - width

h - height

We have

$l=n^2+2;\ w = 10,\ h=n+5$

Substitute:

$V=(n^2+2)(10)(n+5)=(10n^2+20)(n+5)\\\\=(10n^2)(n)+(10n^2)(5)+(20)(n)+(20)(5)\\\\=10n^3+50n^2+20n+100$

<h3>Answer: V = (10n³ + 50n² + 20n + 100) in³</h3>

5 0

3 years ago

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KATRIN_1 [288]

Answer:

The maximum height of the volleyball is 12.25 feet.

Step-by-step explanation:

The height of the volleyball, h(t), is modeled by this equation, where t represents the time, in seconds, after that ball was set :

$h(t)=-16t^2+20t+6$ ....(1)

The volleyball reaches its maximum height after 0.625 seconds.

For maximum height,

Put $\dfrac{dh}{dt}=0$

Now put t = 0.625 in equation (1)

$h(t)=-16(0.625)^2+20(0.625)+6\\\\h(t)=12.25\ \text{feet}$

So, the maximum height of the volleyball is 12.25 feet.

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3 years ago

Simplify the expression. 6/7x - 8 - 4/7x - 8

shtirl [24]

The answer to this is - 2(56x-1)/ 7x

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3 years ago

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Pls help i really need a math professional im struggling.​

Pls help i really need a math professional im struggling.