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
motikmotik
3 years ago
7

Solving systems of equations using substitution

Mathematics
1 answer:
Semenov [28]3 years ago
3 0
Put x=-2 in x-y=-2
-2-y=-2
-y=0
y=0
x=-2
that's your answer.
You might be interested in
Shirts-2-Go sells t-shirts for a base price of $12 per shirt plus a fixed fee of $3 shipping and handling for the whole order. S
Andrew [12]

Answer:

5\ shirts

Step-by-step explanation:

Let

x------> the number of shirts ordered

y-----> the total cost of the order

we know that

The linear equations that represent each situation are

<u>Shirts-2-Go</u>

y=12x+3 ------> equation A

<u> Shirts PLUS</u>

y=8x+23 ------> equation B

To know how many shirts to purchase so that the total cost is the same in both companies, equate equation A and equation B

12x+3=8x+23

12x-8x=23-3

4x=20

x=5\ shirts

8 0
3 years ago
Read 2 more answers
You and your friend join the gym the registration fee is $30 in the monthly membership is $20 if the total bill for you and your
just olya [345]

Answer:

I want to say 19.5 months

Step-by-step explanation:

30+20=50

420-50=370

370÷20=18.5

18.5 plus the initial month is 19.5 months

6 0
4 years ago
Read 2 more answers
Productive use of machinery on a farm made it possible to decrease the number of tractors by 12 how many tractors does the farm
irina1246 [14]
So first off, the answer to this is 24 now think of x as the  real or original sum or amount, also y as the new sum or amount.
y * 1.5 is x, and y+12 is x. Now flip that to figure out what is y, also which is what we need, and you have x/1.5 = y as well as x-12 = y. Use the equal values method and make an equation x/1.5=x-12. solve this equation to get x, which is 36. to figure out the new amount, y, you need to minus 12, which can help you get the answer which is 24.
5 0
3 years ago
Peyton has 2 pizzas. Each pizza is cut into 10 equal slices. She and her friends eat 14 slices. What part of the pizzas they eat
RideAnS [48]
Well, each pizza is cut into 10 slices, that means both pizzas are 10+10 slices, or 20 slices, then they ate 14 of those 20 slices.

so they ate 14 out of 20, or 14/20, which simplifies to 7/10.
7 0
4 years ago
What is the value of x in the diagram? A. 64° B.20 C. 42 D.10
frutty [35]
Please include the diagram, but if it's talking about inner angles, and it's a triangle, all triangles angles equal up to 180 and all quadrilaterals angles equal up to 360
5 0
4 years ago
Other questions:
  • A band to played 3 concerts and earned about a total of $321.00.the band earned about the same amount for each concert estimate
    6·2 answers
  • Please help! I will mark the best answer
    9·1 answer
  • Thanks in advance! Solve for B:<br> a=1/2h(a+b)
    8·1 answer
  • A large pizza is ever ties have a 14 inch diameter if a customer orders two large pizzas how many square inches of pizza will he
    13·1 answer
  • Please help me solve this. This is in logarithm functions. Thank you...<br><br><br> Solve log x = 3.
    5·2 answers
  • Very confused! pls explain!
    14·1 answer
  • You increase the size of a page by 30% then decrease it by 30% what is the size of the page now?
    7·2 answers
  • Which rate is equivalent to the unit rate of 13 miles per gallon? GOTTA HAVE THE CORRECT ANSWER IN 3 HOURS! HELP ME!
    14·2 answers
  • Calculate the average daily balance, finance charge, and new balance using the average daily balance method.
    8·1 answer
  • A cylinder has a diameter of 10 cm and a height of 15 cm. A cone has the same height and diameter. What is the approximate diffe
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!