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3 years ago

Pls helpppp explain and show how to do this i do not under stand dose anyone eals understand this

Mathematics

2 answers:

rusak2 [61]3 years ago

8 0

Answer:

the answer is: 75%

Step-by-step explanation:

Consider:

12 ----------> 100%

9 ----------> x

x = 9x100/12 = 75%

Hope it helps!

Ilya [14]3 years ago

8 0

Answer:

I got 43

Step-by-step explanation:

The first step I took was to make a proportion. I did 9/21 equals x/100. The whole is 21 because it says "Hint: How many players did Clayton play/" so I am guessing it means adding 9 and 12. Then I divided 900 by 21 after using what you would call the butterfly method. I rounded 42.85... to 43.

I hope this helps. This is how I remember it and I got the correct answer. Good luck!

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Eric used to practice football for 90 minutes every day. Now, he practices 200% as many minutes as he used to. How many minutes

densk [106]

X/90 = 200/100 is/of = %/100
so cross multiply 90 and 200 and x and 100
giving you 18000 = 100x
divide both sides by 100
180=x

4 0

4 years ago

What is the height of the triangular prism below if the volume equals 1,638 cubic millimeters? 65 mm 63 mm 26 mm 28 mm.

sergejj [24]

Answer:

The height of the triangular prism is $26\ mm$

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The volume of the triangular prism is equal to

$V=Bh$

where

B is the area of the triangular base

h is the height of the prism

<em>Find the area of the base B</em>

$B=\frac{1}{2}(7)(18)=63\ mm^{2}$

we have

$V=1,638\ mm^{3}$

$h=x\ mm$

substitute and solve for x

$1,638=(63)x$

$x=1,638/(63)=26\ mm$

6 0

4 years ago

What is the extended ratio relating the side lengths of a 30-60-90 triangle?

notka56 [123]

Answer:

x:2x:√3x.

Step-by-step explanation:

I would write it as x:2x:√3x.

The hypotenuse is twice the length of the shorter leg and the longer leg is the square root of 3 times the shorter leg.

8 0

3 years ago

Read 2 more answers

Which polynomial equation of least degree has -2, -2, 3, and 3 as four of its roots? (x + 2)(x - 3) = 0 (x - 2)-2(x + 3)3 = 0 (x

azamat

Answer:

(x + 2)²(x - 3)² = 0

Step-by-step explanation:

Since we have a degree of 2 and double of the same roots, we know that each root would have a multiplicity of 2. Therefore, our answer is(x + 2)²(x - 3)² = 0

6 0

4 years ago

I saw this in a newspaper – it was a puzzle for adults, fully grown humans, but I think you will find it easy.

grin007 [14]

Answer:

d=9

Step-by-step explanation:

any other idea

helpp plss

5 0

2 years ago