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3 years ago

Which of these equations represents functions where x is the input and y is the output

Mathematics

2 answers:

kobusy [5.1K]3 years ago

5 0

B & C since y is equivalent to the operations on the other side, while there are no operations being performed unto y.

Gnom [1K]3 years ago

4 0

B,C,D Is the answer

hope this helps

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A company that offers tubing trips down a river rents tubes for a person to use for $20 and “cooler” tubes to carry food and wat

aivan3 [116]

The group rent 11 river rent tubes and 4 cooler tubes.

Step-by-step explanation:

Rent for river rent tube = $20

Rent for cooler tubes = $12.50

Total spent = $270

Total tubes rented = 15

Let,

x be the number of river rent tube.

y be the number of cooler tubes.

According to given statement;

x+y=15 Eqn 1

20x+12.50y=270 Eqn 2

Multiplying Eqn 1 by 20

$20(x+y=15)\\20x+20y=300\ \ \ Eqn\ 3$

Subtracting Eqn 2 from Eqn 3

$(20x+20y)-(20x+12.50y)=300-270\\20x+20y-20x-12.50y=30\\7.50y=30$

Dividing both sides by 7.5

$\frac{7.5y}{7.5}=\frac{30}{7.5}\\y=4$

Putting y=4 in Eqn 1

$x+4=15\\x=15-4\\x=11$

The group rent 11 river rent tubes and 4 cooler tubes.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

Solve this quadratic equation using the quadratic formula.<br> 2x^2 - 2x = 0

lakkis [162]

Answer:

Step-by-step explanation:

The answer is x=27

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3 years ago

Write equivalent expression for 7× + 4× + 3-1

Mazyrski [523]

Answer: you just flip it. It would be the opposite.

Step-by-step explanation:

When you flip it, what’s the difference? It’s still the same.

6 0

3 years ago

So i dont know what 9+4+x is can you help?

Dahasolnce [82]

Answer:

13+x

Step-by-step explanation:

all you have to do is 9+4 which is 13 and leave the +x so you get 13+x as your answer

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4 years ago

Read 2 more answers

Geometry question 2, Thanks if you help!

wlad13 [49]

A. 113 because vertical angles are congruent.

8 0

3 years ago