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
gtnhenbr [62]
3 years ago
6

Use substitution to solve the system of equation. 2x+2y=8 x+y=-2

Mathematics
1 answer:
eimsori [14]3 years ago
5 0

Answer:

Step-by-step explanation:

find the value of y in the second equation

x + y = -2,

but y = -2-x as well

so take the value that we have found for (x) into the first equation

2x + 2(-2-x)= 8

-2x + -4-2x = 8

-4x-4=8

-4x = 12

x=-3,

now just substitute x value into either equation

x + y =-2

-3 + y = -2

y =1

You might be interested in
Anusha is walking on a hiking trail at a rate of Three-fourths miles in One-fourth hour. At this rate, how far will Anusha walk
grandymaker [24]

Answer:

Step-by-step explanation:

3/4 + 3/4 + 3/4 + 3/4 = 12/4 = 3. She will walk 3 miles in an hour.

6 0
3 years ago
What is an integer?
Digiron [165]

Answer:

B

Step-by-step explanation:

An integer is any whole number (both positive and negative) and zero.

5 0
3 years ago
Read 2 more answers
If y varies inversely as x2 and y = 100 when
love history [14]
Ans: (c)

y = k/x^2

when y = 100, x = 1
100 = k/1^2
k = 100

when x = 2,
y = 100/2
= 50

(u/rachelmarrons already gave you the answer but here’s a step-by-step explanation in case you needed it haha)
4 0
2 years ago
The magnitude of m is 29.2 meters, and the magnitude of n is 35.2 meters. If m and n are perpendicular, what is the magnitude of
iris [78.8K]

Answer:

The correct answer is 45.73 m

6 0
2 years ago
Find the greatest common factor 28 and 12<br><br> use the GCF to factor 28+12.
fgiga [73]

Answer:

(a) 4

(b) 4 * (7+3)

Step-by-step explanation:

(a) Let's first start by prime factorizing (finding the prime factors) 28 and 12:

12: 2*2*3

28: 2*2*7

We can see here they both share a common factor of 2*2, which is 4, therefore the GCF is 4.

(b) Factor a 4 out from the equation:

4*(\frac{28}{4}+\frac{12}{4})

This gives us:

4 * (7+3)

5 0
2 years ago
Other questions:
  • Can someone help me
    5·1 answer
  • There are 2.54 Centimeters in 1 inch how many inches are there in 51.7 centimeters round your answer to the nearest thousandths
    15·1 answer
  • EMERGENCY
    11·2 answers
  • What is 2x3-5x2-28x+15;x+3
    7·1 answer
  • X2 + 8x + 20 = 0<br> Quadratic equation
    7·1 answer
  • You are interested in getting an investment portfolio started with any extra money you make from your part time job while also g
    14·1 answer
  • What is the base of a rectangle that has a height of 26 m and an area of 78 m^2?
    13·1 answer
  • If y varies directly as x, and y = 64 when x = 8. Find y when x = 12
    8·1 answer
  • Ted likes to run long distances. He can run 20 \text{ km}20 km20, start text, space, k, m, end text in 959595 minutes. He wants
    15·1 answer
  • At what point does the graph of y=9x(x is exponent) cross the y-axis?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!