3 years ago

Which statements are true? Select MORE THAN ONE correct answer.

Mathematics

2 answers:

DochEvi [55]3 years ago

7 0

Statements 1 and 4 are correct. Let me know if you need more of an explanation. :)

Anastasy [175]3 years ago

6 0

Answer:

A and D.

Step-by-step explanation:

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A tank sprung a leak in the water level started drop from 24.8 m at a rate of 2 m/h. Right and solve an equation to determine ho

malfutka [58]

Answer:

8 hours.

Step-by-step explanation:

The initial water level is 24.8 meters, and the rate of water level drop is 2 meters/ hour, that means after $t$ hours the water level $L$ will be

$L =24.8-2t$

Now we want water level to be 8.8 meters, I.e $L=8.8m$ , therefore, we have:

$L=8.8=24.8-2t$

we solve the equation for $t$ :

$8.8=24.8-2t\\8.8+2t=24.8\\2t=24.8-8.8\\2t=16\\\\\boxed{t=8}$

it will take 8 hours for the water level to drop to 8.8 meters.

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Answer:

Step-by-step explanation:

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4 years ago

Solve x - 9 = 3 + y for y.

Mila [183]

Step-by-step explanation:

$x - 9 - 3 = y \\ y = x - 12$

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3 years ago

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vovikov84 [41]

A is the correct Answer

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Evaluate the following when x = 3 2x+ 5(x)

Nina [5.8K]

Hi!

I can help you with joy!

Evaluate:

$\fbox{2x+5x}$ when $\fbox{x=3}$

First, add x's:

$\rm{7x}$

Now, plug in the value of x (3)

$\rm{7(3)$

Multiply:`

$\rm{21}$ (Answer)

Hope it helps!

Ask me if you have any doubts.

Enjoy Your Day/Night! :)

Answered by

~Silent~

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3 years ago