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4 years ago

How do I solve this system of equations? Help ASAP! 2x+8y=6 -5x-20y=-15

1 answer:

7 0

Well they are the same line. Because if you put x=-1 and y=1, 2(-1)+8(1)=6 and that works, now -5(-1)-20(1)=-15 and that also works so they are the same line.

-2+8=6
5-20=-15

Answer:They are the same line

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To rent a certain meeting room, a college charges a reservation fee of $34 and an additional fee of $9.90 and hour. The math clu

earnstyle [38]

Answer:

9 hours

Step-by-step explanation:

Firstly,

Minus $123.10 with $34

123.10-34

= 89.10

(bcuz $34 is the reservation fee)

Secondly,

Divide $89.10 with $9.90 to determine the hours

t = 89.10/9.90

= 9

Last answer = 9 hours

6 0

3 years ago

Solve the question (equation) 0.3r=96

Alika [10]

The correct and best answer is r=320 because you have to divide both sides by 0.3

6 0

3 years ago

Write 30/75 in lowest terms

Andrews [41]

Answer:

30/75

(30÷5)/(75÷5)

6/15

(6÷3)/(15÷3)

2/5

= 2/5.

Thank you.

BY GERALD GREAT.

4 0

3 years ago

Emir arrived at the doctor's office at 2:20 P.M. He finally saw the doctor at 3:14 P.M. How long did Emir have to wait?

masya89 [10]

Answer:

54 MINUETS

Step-by-step explanation:

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3 0

3 years ago

Lee is traveling by train to visit his grandmother. After 1 hour, he has 270 miles left to travel. After 2 hours, he has 180 mil

Nat2105 [25]

Answer:

• 90 miles per hour.

• 360 miles

Explanation:

After 1 hour, he has 270 miles left to travel.

After 2 hours, he has 180 miles remaining.

To determine the speed of the train, we find the rate of change.

$\begin{gathered} \text{Slope},m=\frac{Change\text{ in y-axis}}{Change\text{ in x-axis}} \\ =\frac{270-180}{1-2} \\ =\frac{90}{-1} \\ =-90\text{ miles per hour} \end{gathered}$

The speed of the train is 90 miles per hour.

If the train travels 90 miles per hour, and after 1 hour, he has 270 miles to travel:

The distance of the train is:

$\begin{gathered} =270+90 \\ =360\text{ miles} \end{gathered}$

6 0

1 year ago