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Salsk061 [2.6K]
2 years ago
7

Can y'all help me with my math problem please

Mathematics
2 answers:
andrew11 [14]2 years ago
4 0
D is the right answer, you got it right
zhuklara [117]2 years ago
3 0

Answer:

D is the right ans

I think...

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What is 302.135 rounded to the nearest tenth?<br> A. 300<br> B. 302.1<br> C. 302.14<br> D. 302.2
miss Akunina [59]
The answer is B because numbers 0-4 round down and numbers 5-9 round up
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3 years ago
An electronics store sells DVD players and cordless telephone. The store makes a $75 profit on the sale of each DVD player (d) a
Nata [24]
<h3>Inequality</h3>

75d + 30c ≥ 255

<h3>Examples</h3>

(1) If someone bought five DVD players and ten cordless telephones, the equation ((75)(5)+(30)(10)≥255) would be true.

(2) If the electronic store had a parcticularly bad day and they sold two DVD players and one cordless telephone, the equation ((75)(2)+(30)(1)≥255) would be false.

3 0
2 years ago
Yea yea you know i need help my brains tiny thank you for everything and everyone helping
Darina [25.2K]

Answer: r=6

Step-by-step explanation:

<u>Step 1: Substitute for the known variables</u>

we know that the formula to find the volume of a cylinder is <u>V= πr²h</u>

π= 3.14

h= 12

r= ?

v=1,357

Plugging the numbers we know into the formula, we get:

1,357= 3.14xr²x12

1,357= 3.14x12xr² (because with the commutative property of multiplication you can multiply in any order)

1,357= 37.68 x r²

<u>Step 2: Get the variable term (the letter term) on the left</u>

37.68 x r²= 1,357

Now, divide by 37.68. (I know to divide because when you switch the 37.68x r² the other way around to  r²x37.68, you are clearly multiplying and must do the inverse operation (opposite of multiplication; division) to solve the problem.

So,

r²= 1357÷37.68

r²= 36.0138004 ----> about 36.

r²= 36

This equation isn't over yet because we still have the exponent on the r. Whenever you see a letter squared (to the power 2) in an equation, the "inverse operation" is to take the square root of both sides. Look:

r²= 36

The square root of  r² is just r, because r x r =  r²

The square root of 36 is 6, because 6x6=36.

Now we have :

r= 6

Step 3: Check

Now we have all the variables. To check to make sure the radius is correct, "plug in"

V= π r²h

1,357= 3.14x6²x12

1,357= 3.14x36x12

1,357= 113.04x12

1,357= 1356.48

They said in the question that the volume is APPROXIMATLEY 1357, so I can just round 1356.48 --> 1356.5---> 1357. Now I am sure that the radius is 6.

Hope this helps :)) also brainliest would be appreciated  :D

4 0
2 years ago
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s344n2d4d5 [400]

Answer:

C. $150

Step-by-step explanation:

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3 years ago
Write 27/40 as a decimal.
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Answer:

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Step-by-step explanation:

27/40

- Divide each number by 10

2.7/4

- Multiply each number by 25

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Convert that into a decimal. :)

4 0
2 years ago
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