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
Alona [7]
3 years ago
8

Solve the System using elimination. 5x-2y=15 7x+7y=-28

Mathematics
1 answer:
steposvetlana [31]3 years ago
8 0

Answer:

x=1 y=-5

Step-by-step explanation:

7(5x-2y=15) --->      35x-14y=105

2(7x+7y=-28) -->  + <u>14x+14y=-56</u>

                               49x=49  --->x=1

5(1)-2y=15 ---> 5-2y=15 ---> -2y=10 ---> y=-5

You might be interested in
Write two different expressions to represent the sale price of a fishing pole, f, after a 20% discount.
Rom4ik [11]

Answer:

When we have a discount of X% of the original price, the new price is calculated as:

New price = (original price) - (original price)*(X%/100%)

In our case, let's define:

P = original price of the fishing pole

f = price of the fishing pole after the discount

X% = 20%

Then the equation for the price of the fishing pole is:

f = P - P*(20%/100%) = P - P*0.2 = P*(1 - 0.2) = P*0.8

f = 0.8*P

This means that the price after the discount is 0.8 times the original price.

7 0
2 years ago
Math help please? w/ only two questions.
Law Incorporation [45]
Maybe: 1. When I play basketball i wear cletes. 2. If a quadrilateral figure has four right angles then it is a square <span> </span> my best guess. Let me know if it helps
3 0
3 years ago
(posting this for my friend) SOMEONE HELP ASAPPPP PLEASEEE,PLEASE EXPLAIN HOW U GOT YOUR ANSWER, I NEED AN EXPLANATION IN ORDER
Pani-rosa [81]

Answer:

45

Step-by-step explanation:

the 90 degree angle is subtracted by 45 and the answer is.

4 0
3 years ago
Braydon is performing the four arithmetic operations on 14 and 2.
Luda [366]
The answer is 14 divided by 2
4 0
3 years ago
Distribute – 10 (-10x2 + x).<br> Answer:
statuscvo [17]

Answer:

your moms weight

Step-by-step explanation:

look stop if you dont want to do your homework dont do it amd get in trouble idc you are sepose to know

7 0
3 years ago
Other questions:
  • tom has 28 milk chocolates and emily has 24 dark chocolates they have to divide these chocolates into small packets that each ha
    12·2 answers
  • Find the area of a uneven leaf
    7·1 answer
  • What is the hypothesis in the statement “If I go to the beach, then I will wear sunblock”?
    10·1 answer
  • Identify the perimeter and area of a square with diagonal length 6√3 in. Give your answer in simplest radical form.
    15·1 answer
  • Use the distributive property -7(-2x+u-2)
    6·2 answers
  • -3x 3y = 3<br> y = -5x - 17
    8·1 answer
  • Are the triangles above similar?
    9·2 answers
  • Pls answer number 6 fast pls someone help
    9·2 answers
  • Angles in triangles <br><br> Question is in the photo
    13·1 answer
  • A typical roulette wheel used in a casino has 38 slots that are numbered 1, 2, 3, ... , 36, 0, 00, respectively The 0 and 00 slo
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!