1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mumz [18]
3 years ago
14

I need help with substitution​

Mathematics
2 answers:
Lelechka [254]3 years ago
7 0
When I did the work I got the same answer (-7,-15)
Neporo4naja [7]3 years ago
6 0

Answer:

(-7,-15)

Step-by-step explanation:

We can substitute first y in the second y. Both equations are also functions. We can merge the equations.

2x - 1 = x - 8  \\ 2x - x =  - 8 + 1 \\ x =  - 7

Substitute x = -7 in any given equations. I will choose the second equation to substitute in.

y = x - 8 \\ y =  - 7 - 8 \\ y =  - 15

<u>Answer</u><u> </u><u>Check</u>

Substitute both x and y in both equations.

- 15 = 2( - 7) - 1 \\  - 15 =  - 14 - 1 \\  - 15 =  - 15

The equation is true for (-7,-15).

- 15 =  - 7 - 8 \\  - 15 =  - 15

The second equation is true for (-7,-15).

Therefore our answer is (-7,-15)

You might be interested in
Please help me with this No LINKS and please explain to get brainliest and also no inappropriate answers
Alex787 [66]

Answer:

Range: 22

Median: 79

Mode: 80

Step-by-step explanation:

I hope this helped and have a nice day! Also can I have brainliest?

3 0
2 years ago
How many numbers lie between the square of 56 and 57
NARA [144]

Answer:

Given, two numbers 56 and 57 we need to find out the numbers lie between the squares of the given numbers.

Now, we have numbers lying between the square of n and (n + 1) is 2n

⇒ Numbers between squares of 56 and (56 + 1) = 2 × 56 = 112

Hence, 112 numbers lies between the square of the given numbers.

7 0
2 years ago
Read 2 more answers
What is the best estimate for the number of people in line at 7.A.M
Keith_Richards [23]

We have been given the equation

y=-5.131x^2+31.821x-3.333

It represents the number of people standing to catch a commuter train x hours after 5 A.M.

Now, in order to find the number of people in line at 7 a.m. , we need to substitute x= 2 in the above equation.

y(2)=-5.131(2)^2+31.821(2x)-3.333\\y(2)= 39.785 \approx 40

Therefore, the number of people in the line at 7 a.m. is 40

D id the correct option.

5 0
3 years ago
The zeros of a quadratic function are -7 and 3. Which of the following could be the function? Select all that apply.
vladimir2022 [97]

Answer:

Hello! Your answer would be, A)F(x)=2x^2-8x-42

Step-by-step explanation:

Hope I helped! Brainiest plz!♥ Have a nice afternoon. Hope you make a 100%! -Amelia

5 0
2 years ago
2) Robert is trying to raise money for the children. Last year Robert raised $85. While this year he raised $125. By what percen
bekas [8.4K]

Answer:

5×^4

Step-by-step explanation:

I think that is the answer.

5 0
3 years ago
Other questions:
  • You and two friends visit a pizza shop. There are 14 toppings. 7 toppings are meat and the rest are vegetable. Each of you order
    12·1 answer
  • How do you solve 15 = 7 - x
    14·1 answer
  • Gary lost 17 pounds while on a diet, but gained 8 pounds back. Which number is the additive inverse of the change in Gary's weig
    12·2 answers
  • A non toxic furniture polish can be made by combining vinegar and oil. The amount of oil should be five times the amount of vine
    9·1 answer
  • Add using scientific notation.<br> (5.2 x 10') + (3.01 x 10^)
    5·1 answer
  • Please help! A little confused.
    12·1 answer
  • Substitute t = 3 and t = 6 to determine if the two expressions are equivalent.
    8·2 answers
  • Answer idhfbfhfnffdvdbbdbdd
    12·1 answer
  • PLZ HELP 3 MINUTES LEFT WIL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    11·1 answer
  • A flagpole is 12 feet tall. Its shadow is 14 ft long. How far is it from the top of the
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!