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
ra1l [238]
3 years ago
13

Solve each system using the substitution method 6x-y=-4 and 2x+2y=15

Mathematics
1 answer:
Fynjy0 [20]3 years ago
8 0
Convert 6x - y = -4 into y = mx + b
Y - 4 = 6x
Y = 6x + 4
Substitute that into second equation
2x + 2(6x + 4) = 15
2x + 12x + 8 = 15
14x = 7
X = 1/2
6(1/2) - y = -4
3 - y = -4
-y = -7, y = 7
Final answer: x = 1/2, y = 7
You might be interested in
A football team lost 5 yards on each 3 plays. explain how you could use a number line to find the team's change in field positio
ollegr [7]
<span>A football team lost 5 yards on each 3 plays.
Let’s use a number line to be able to see how far in the field did they lost in 3 games.
=> 1 : 5  (1 game is to 5 yards)
=> 3 : 15 (3 games is to 15 yards )
All in all they lost 15 yards in 3 games.
pls. see attachment for more presentation.</span>



5 0
3 years ago
Plz help me!?!?<br><br> and thank u
vesna_86 [32]
Subtract 7.8 points by 4.8 and you get 3.4 !!
7 0
2 years ago
Read 2 more answers
Which decimal is equivalent to 120%
Rus_ich [418]
120% as a decimal = 1.2
8 0
2 years ago
What is the midpoint (-4,0) and (10,7)?
mestny [16]
We first use midpoint formula
X1+X2 divided by 2 we want x for midpoint.
Y1+Y2 divided by 2 we want Y for midpoint
10-4 divided by 2 =3
7-0 divided by 2 =7/2
therefore midpoint= (3;7/2)
5 0
3 years ago
Can someone please tell me how to solve this?? <br> 4x^2+35x+24=0
Gre4nikov [31]

Answer:

Step-by-step explanation:

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

6 0
3 years ago
Other questions:
  • ABC Insurance offers an annuity with 4.5% APR for the next 5 years. You decide to invest $1000 each year into this account. What
    10·2 answers
  • Solve.
    14·1 answer
  • I’m feeling really lazy today, can someone do this for me?
    8·1 answer
  • How many sides does a regular polygon have if one exterior angle is 90 degrees? 3 4 5 6?
    5·2 answers
  • Marguerite is building a box from strips of wood. She needs 78 pieces of wood that are each 29 centimeters long. The wood comes
    5·1 answer
  • Thomas took a practice test to study for a trivia game show. There were 65
    9·1 answer
  • Evaluate: Percents Benita answered 85% of the test questions correctly. If she answered 9 questions incorrectly, how many questi
    11·1 answer
  • In the diagram,m&lt;1= (4x+10) and m&lt;2=(c+20) the value of x is
    8·1 answer
  • Charlie just bought 8 bags of 14 cookies each. He already had 9 cookies in a jar. How many cookies does Charlie have now?
    12·2 answers
  • 5m – 8 = 3m + 8 for m
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!