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
zvonat [6]
3 years ago
12

For the following system, use the second equation to make a substitution for y in the first equation. 2x + y = 5 y + 3 = 2x

Mathematics
2 answers:
deff fn [24]3 years ago
7 0
For the second equation, y=2x-3. Substituting this in, you get 2x+2x-3=5. Add the 2x's (4x), and add 3 to the 5 (8). You should get 4x=8, which will give you x=2.  
Alla [95]3 years ago
6 0
If y equals 2x - 3 in the second equation, than subsitute it in for y in the first.
2x + 2x - 3 = 5
4x - 3 = 5
4x = 8
x=2
2(2) + y = 5
x = 2 and y = 1

You might be interested in
If your away-from-home food bill was $520 in November 2012, what was it in November 2013?
son4ous [18]
If it was the exact spending as the previous year it would be $520 but doubled would be $1,040. Since there is not enough information in the problem I can not say for certain.
4 0
3 years ago
Given Sn=2n^2 - 5n, find
brilliants [131]

Answer:

a) -3

b) 117

c) 100

Step-by-step explanation:

(a) 2(1)²-5(1)

1²= 1

2×1= 2

2-5= -3

(b) 2(9)²-5(9)

9²= 81

81×2= 162

162-45= 117

(c) 2(4)²-5(4) +2(8)²-5(4)

4²=16

16×2= 32

32-20= 12

8²=64

64×2= 128

128-40= 88

88+12= 100

hope it helps!

6 0
3 years ago
Help please thank you
valentinak56 [21]

Answer:

Step-by-step explanation: letter B is the right answer

5 0
3 years ago
Read 2 more answers
Find the X intercept and the Y intercept from the following linear equation X+ 4y = -56
stealth61 [152]

Answer:

x-intercept = -56

y-intercept = - 14

Step-by-step explanation:

x + 4y = -56

x- intercept :

y = 0

x + 4*0 = - 56

x-intercept = -56

y-intercept:

x=0

0 + 4y = - 56

4y = -56

y = - 14

y-intercept = - 14

4 0
3 years ago
What is a capacity of 25 fl oz more than a capacity of 3 cups
nata0808 [166]
I’m guessing 2 cups or something idk
7 0
3 years ago
Other questions:
  • For every 6 boxes sold, Stephanie makes a profit of $8.10. Which table shows this same rate of change?
    10·2 answers
  • The function f(x) = 1.50x + 12.50 relates how much Kelsey pays for digital service, f(x), to the number of movies, x, she stream
    9·1 answer
  • A grocery store sells Swiss cheese for $5.90 a pound. To the nearest cent what is the cost oer ounce if Swiss cheese? round you
    6·2 answers
  • How to determine if a equation is a inequality
    8·1 answer
  • I WILL GIVE BRAINLIEST AND 50 POINTS!!!(ANSWER ALL QUESTIONS) Question 1(Multiple Choice Worth 4 points) Erica purchased adult a
    9·1 answer
  • Angle PQR is an ____ angle
    9·1 answer
  • Kathy is baking cakes. Each cake requires 1/12 of a teaspoon of vanilla,and she has 3/4 of a teaspoon,how many cakes can she bak
    14·1 answer
  • ANy help i'll give brainliest
    14·2 answers
  • C<br> 56 cm<br> 33 cm<br> What is the length of the hypotenuse?<br> C =<br> centimeters<br> Suboth
    14·1 answer
  • The answer to this question
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!