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3 years ago

Pls help!

Mathematics

1 answer:

Misha Larkins [42]3 years ago

5 0

Answer:

5.184 or 5.180 (rounded up)

Step-by-step explanation:

V = Bh or l x w x h

2.4 x 1.2 x 1.8 = 5.184 but rounded up would be 5.180

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Use the elimination method to find all solutions of the system:

weqwewe [10]

Answer:

$x = 3$ and $y = 4$

Step-by-step explanation:

Given

[Correct Question]

$x^2 - 2y = 1$

$x^2 + 5y = 29$

Required

Solve using elimination

First, we eliminate x.

Subtract equation (1) from (2)

$x^2 - x^2 + 5y - (-2y) = 29 - 1\\$

$5y - (-2y) = 28$

$5y +2y = 28$

$7y = 28$

Divide through ny 7

$y = 4$

Take $x^2 - 2y = 1$

Make x^2 the subject

$x^2 = 1 + 2y$

Substitute 4 for y

$x^2 = 1 + 2*4$

$x^2 = 1 + 8$

$x^2 = 9$

Take square roots

$x = \sqrt 9$

$x = 3$

7 0

3 years ago

28 degree + x-4 degree+2x=180 degree

FromTheMoon [43]

Answer:

x = 52

Step-by-step explanation:

28 + x - 4 + 2x = 180

Simplify the left side

3x + 24 = 180

Subtract 24 from each side

3x = 156

Divide each side by 3

x = 52

3 0

2 years ago

Please help and show work

gladu [14]

Answer:

Step-by-step explanation:

First I converted the fractions into decimals to make it easier to solve.

2 1/2 —> 2.5

1 3/4 —> 1.75

Then I added the two decimals together.

2.5 + 1.75 = 4.25

Then I divided this number by 100 (the number of cups in one bag)

100/4.25=23.529

With this equation I know that one bag lasts 23 full days.

This is almost a month, and so it would not make sense for the answers to be B, C, or D.

Hope this helped

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3 years ago

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In which quadrant of the coordinate graph does point R lie?

Sergio [31]

Your answer is d Its on the fourth quadrant! that Is really easy!

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3 years ago

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Which expression is equivalent to 36a-27

sesenic [268]

This answer is a. Just do distributive property

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3 years ago