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Westkost [7]
3 years ago
15

Which equation results from adding the equations in this system? x + 6 y = 9. Negative x + 2 y = negative 15.

Mathematics
2 answers:
eimsori [14]3 years ago
8 0

Answer:

Its A on edge2020

Step-by-step explanation:

I just took the quiz:)

Lunna [17]3 years ago
5 0

Answer:

Step-by-step explanation:

x + 6y = 9

-x + 2y = -15

-------------------add

8y = - 6 <=== u see that the x terms cancel each other out

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One-fourth of a
Whitepunk [10]

Answer:

24 bowls

Step-by-step explanation:

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3 0
3 years ago
Jerry goes to a theme park to ride the roller coasters. The theme park charges an entry fee in addition to a fee for each roller
ratelena [41]
You start with: (assuming x equals the cost to enter and y the cost of going on the rollercoasters.)
x+5y=35
x+11y=59. Multiply the top equation by -1, and subtract the equations, giving you -6y=-24, divide by -6 into both sides of the equation, to get y=4. Now replace y in one of the original equations (I recommend x+5y=35) and solve for x, giving you x=15 

The cost for entering is 15 dollars, while each coaster is 4 dollars more. You could simplify this by changing y into x and making it slope-intercept form, to track your cost. y=4x+15, so it has a slope of 4, and a y-intercept of 15. This answer should give you a good grade on a test. 
7 0
3 years ago
What are the partial quotations of 378 and 145
kramer
If it is adding it is going to be 623
7 0
3 years ago
WILL GIVE BRAINLIEST ANSWER
Ad libitum [116K]
<span>2² + 4² ÷ 2<span>²

4 + 16 </span></span>÷ 4

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7 0
3 years ago
Read 2 more answers
A long distance phone service charges $0.30 for the first 10 minutes and $0.05 for each additional minute or fraction thereof. U
olga nikolaevna [1]

Answer: Our Cost function is discontinuous at every integer after x>10.

Step-by-step explanation:

Since we have given that

For the first 10 minutes , the service charges = $0.30

Let the number of additional minute be 't'.

Amount charge for each additional minute = $0.05

Using the greatest integer function:

So, Cost C of a call in terms of time 't' minutes would be

C=0.03+0.05\left \lceil t-10 \right \rceil

As we know that Greatest integer is discontinuous at every integer.

So, our Cost function is discontinuous at every integer after x>10.

4 0
3 years ago
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