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
Svet_ta [14]
3 years ago
12

Use substitution to solve each system of equations c-5d=2 2c+d=4

Mathematics
2 answers:
Hatshy [7]3 years ago
8 0
<span>2x-y = -4 OR y = 2x+4
-3x+y=44
-3x + (2x+4)= 44

-x = 40
x = -40 and y = -76 (2*-40 + 4)
c-5d=2 OR c = 5d + 2
2c + d =4
2(5d+2) + d = 4
11d = 0
d = 0 and c = 2 </span>
Anarel [89]3 years ago
4 0
<span>2x-y = -4 OR y = 2x+4
-3x+y=44
-3x + (2x+4)= 44

</span><span>-x = 40
x = -40 and y = -76 (2*-40 + 4)
c-5d=2 OR c = 5d + 2
2c + d =4
2(5d+2) + d = 4
11d = 0

</span><span>d = 0 and c = 2 <span>
</span></span>
You might be interested in
What is the solution of the equation 1.6m - 4.8 = -1.6m
Flauer [41]
Solve for m:
1.6 m - 4.8 = -1.6 m

Add 1.6 m to both sides:
1.6 m + 1.6 m - 4.8 = 1.6 m - 1.6 m

1.6 m - 1.6 m = 0:
1.6 m + 1.6 m - 4.8 = 0

1.6 m + 1.6 m = 3.2 m:
3.2 m - 4.8 = 0

Add 4.8 to both sides:
3.2 m + (-4.8 + 4.8) = 4.8

4.8 - 4.8 = 0:
3.2 m = 4.8

Divide both sides of 3.2 m = 4.8 by 3.2:
(3.2 m)/3.2 = 4.8/3.2

3.2/3.2 = 1:
m = 4.8/3.2

4.8/3.2 ≈ 1.5:
Answer:  m ≈ 1.5
6 0
3 years ago
a coffee machine dispenses 8 ounce cups automatically. The amount of coffee may vary by 3%. What are the least and greatest numb
Rudiy27

3% of 8 is 0.24

so, the max amount would be 8.24 ounces

the minimum amount would be 7.76 ounces

hope this helps!!

7 0
3 years ago
What percent is 60 is 15
Temka [501]
25%. 60 divided by 15 is 4, thus 15 is 1/4 of 60. 1/4 can also be expressed as 25%
7 0
3 years ago
Read 2 more answers
An earthquake registered 7.4 on the Richter scale. If the reference intensity of this quake was 2.0 × 1011, what was its intensi
dexar [7]
32.0 you just add the first and last numbers then muptily  the middle number by you anwser and divdie your 2 anwsers to gether
5 0
3 years ago
A multiple choice test consists of eight questions, each of which has five choices. Each question has exactly one correct answer
Nesterboy [21]
I dont under standyou
7 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone plz answer this?
    8·1 answer
  • Amit solved the equation StartFraction 5 over 12 EndFraction = Negative StartFraction x over 420 EndFraction for x using the ste
    7·1 answer
  • PLEASE SOLVE AND SHOW WORK Find the equation of the line that passes through the points (-1,-5) and (-7,-6) in slope intercept f
    7·1 answer
  • Why is there a 0 the quotient
    7·1 answer
  • An animal shelter has a ratio of cats to dogs that is 9:7.
    15·2 answers
  • Is Paris correct in her predictions? Check all the apply.
    11·2 answers
  • Describe the data from the dot plot.<br>​
    14·1 answer
  • I'm down to talk........................................................................ sorry it says i have to make it 20 char
    12·1 answer
  • Can you help me with this
    15·2 answers
  • Jayden buys a canoe with 75% off if the original price $72 how much does Jayden pay
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!