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
vlabodo [156]
3 years ago
6

Use the substitution method to solve each linear system. 4x - 3y = -13,-2x + y = 4

Mathematics
1 answer:
Contact [7]3 years ago
8 0

Answer:

The solutions to the system of equations are:

x=\frac{1}{2},\:y=5

Step-by-step explanation:

Given the system of the equations

\begin{bmatrix}4x-3y=-13\\ -2x+y=4\end{bmatrix}

Isolate x for for 4x-3y=-13

4x-3y=-13

4x=-13+3y

Divide both sides by 4

x=\frac{-13+3y}{4}

substitute y=5

x=\frac{-13+3\cdot \:5}{4}

x=\frac{1}{2}

The solutions to the system of equations are:

x=\frac{1}{2},\:y=5

You might be interested in
Translate the statement below into a mathematical expression:
slega [8]

Answer:

18-6=2+y

Step-by-step explanation:

18-6=2+y

5 0
3 years ago
Which of the following statements is false about most checking accounts?
lyudmila [28]
There is no picture for me to check
6 0
3 years ago
Please Help Meee!!
Mazyrski [523]
A. There will be 60 ounces of pineapple juice needed. 150 servings divided by 20 servings is 7.5 servings. 7.5 servings times 8 ounces is 60 ounces.

B. You can make 50 servings of punch. 20 servings divided by 8 ounces is 2.5 ounces. 2.5 ounces times 20 ounces equals 50 servings.
6 0
2 years ago
Simplify the expression -2(p+4)^2-3+5p.What is the simplified expression in standard form?​
Leokris [45]

Answer: -2x²-11x-35

Step-by-step explanation:

-2(p+4)²-3+5p

-2(x²+8x+16)-3+5x

-2x²-11x-35

8 0
3 years ago
Make for me number 21 thx
xz_007 [3.2K]

Method One

You could divide by 5 right away.

20/5 = - 3 + x

4 = - 3 + x Add 3 to both sides.

4 + 3 = x

x = 7

Method Two.

You could remove the brackets. This is slightly longer, but some questions can only be solved that way.

20 = 5(-3) + 5x

20 = -15 + 5x Add 15 to both sides

20 + 15 = 5x

35 = 5x Divide by 5

35/5 = x

7 = x

8 0
3 years ago
Other questions:
  • The distance between home and school is 4.5 miles. On a map it shows the distance to be 9 cm. What is the scale?
    15·1 answer
  • The radius of a 12 inch right circular cylinder is measured to be 4 inches, but with a possible error of ±0.2 inch. What is the
    11·1 answer
  • Which speed is the fastest? A 18 feet in 20 minutes B 90 feet in 2.5 hours C 20 yards in 1.5 hours D 3 2/3 yards in 15 minutes
    7·1 answer
  • Solve the equation using square roots.<br><br> 2x^2-98=0
    13·1 answer
  • Theo solved n + 5 = 11 for the unknown. The steps he
    8·1 answer
  • If 3(x + 5) = 39, then what is x?
    5·2 answers
  • Pls help me plss im so STUCK AHhH
    7·1 answer
  • What is the arithmetic mean of the following numbers?
    9·2 answers
  • Part B
    7·1 answer
  • Is collecting pennies dependent or an independent events?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!