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2 years ago

Please help!! please explain, if explained you will get a brainlest and bonus points thank you!!

Mathematics

1 answer:

babunello [35]2 years ago

4 0

Answer:

108m²

Step-by-step explanation:

So we know to find the volume for a rectangular prism we need to multiply base * height * leght.

For this problem to make it a little easier we can seperate it into 2 rectangular prisms. and then add the volume of both after.

1st prism volume:

2 * 2 * 7 = 28cm²

2st prism volume:

5 * 2 * 8 = 80m²

Final prism volume:

28cm² + 80m² = 108m²

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6+5=11+5=16+5=21
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It will take Marco and Sophie 3 hours to get the same amount of money. The amount of money they will have will be $21.

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2 years ago

PLEASE ANSWER! WILL MARK BRAINLIEST!!

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Answer:

Here you go.Hope this help!!

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1 year ago

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Find all values of x (if any) where the tangent line to the graph of the function is horizontal

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the horizontal tangent line mean y'=0

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2 years ago

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Likurg_2 [28]

Answer:

True!

Step-by-step explanation:

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2 years ago

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For a school play, Rico bought 3 adult tickets and 5 child tickets for $40. Sasha bought 1 adult ticket and 5 child tickets for

Serhud [2]

The cost of one adult ticket is $7.5 and one child ticket is $3.5

Julia will pay $48 for 5 adult tickets and 3 child tickets.

Step-by-step explanation:

Let,

Cost of one adult ticket = x

Cost of one child ticket = y

According to given statement;

3x+5y=40 Eqn 1

x+5y=25 Eqn 2

Subtracting Eqn 2 from Eqn 1

$(3x+5y)-(x+5y)=40-25\\3x+5y-x-5y=15\\2x=15$

Dividing both sides by 2

$\frac{2x}{2}=\frac{15}{2}\\x=7.5$

Putting x=2.5 in Eqn 1

$3(7.5)+5y=40\\22.5+5y=40\\5y=40-22.5\\5y=17.5$

Dividing both sides by 5

$\frac{5y}{5}=\frac{17.5}{5}\\y=3.5$

The cost of one adult ticket is $7.5 and one child ticket is $3.5

5 adult tickets = 5*7.5 = $37.5

3 child tickets = 3*3.5 = $10.5

Total = 37.5+10.5 =$48

Julia will pay $48 for 5 adult tickets and 3 child tickets.

Keywords: linear equation, subtraction

Learn more about subtraction at:

#LearnwithBrainly

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2 years ago