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4 years ago

Finding the surface area and volume to the nearest tenth

Mathematics

1 answer:

erastovalidia [21]4 years ago

6 0

The cylinder:
pi x r^2 x h
= pi x 8^2 x 20
then times it by a half
= 2009.6
The prism:
l x w
= 32 x 20
= 640
All up:
2009.6 +640
The shape equals 2649.6 cm sqaured

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Solve for x algebra help

mafiozo [28]

Answer:

x=24

Step-by-step explanation:

Hi there!

We are given the following proportion:

$\frac{2}{10}=\frac{3}{x-9}$

And we want to solve for x.

First, let's reduce $\frac{2}{10}$ , as reducing fractions typically makes the process easier

$\frac{2}{10}$ is the same as $\frac{1}{5}$

So:

$\frac{1}{5}=\frac{3}{x-9}$

We can't do anything to $\frac{3}{x-9}$ , but that's okay.

Now we can cross multiply, as this is a proportion

Multiply x-9 by 1 and 3 by 5

1(x-9)=3(5)

Multiply

x-9=15

Now this is an equation

Our goal is to isolate x on one side

So let's add 9 to both sides to remove it from the left side

x-9=15

+9 +9

_________

x=24

Hope this helps!

7 0

3 years ago

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Please help will give brainliest!! I have told many people this question and I still can't understand and please read what I say

Sav [38]

Answer:

Step-by-step explanation:

The variables are 41 and 17 but dont know for shure but to solve it its saying you have to use 2s and 3s and you can only use 17 of them in total to get 41 so like umm

10 2s so that’s 20 and then 7 3s and that’s 21 so that’s 41 so its 7 threes and 10 twos is the answer hope that helps tho

Sorry I couldn’t do better

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3 years ago

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Terrance spent one fourth of his money on music he downloaded. He then gives 15 to charity. He spent half of what he had remaini

Aleks04 [339]

Work backwards..
30 helmet + 30 left = 60$
60 + 15 charity = 75$
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3 years ago

Question 20 (5 points)

laila [671]

9514 1404 393

Answer:

B) ΔCAT is congruent to ΔDOG

Step-by-step explanation:

If angles are congruent, the triangles are <em>similar</em>. When both corresponding angles and corresponding sides are congruent, the triangles are <em>congruent</em>.

ΔCAT is congruent to ΔDOG

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3 years ago

Troy needs to buy a rod, reel, lures, line, and a license to go fishing. The sporting goods store has a rod for $67, a reel for

sleet_krkn [62]

I would say either c or d

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4 years ago

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