# Algebra

Pulling my hair, need help!

For the systems of linear equations in questions the following questions:

Determine how many solutions exist

Use either elimination or substitution to find the solutions (if any)

4x = 8 and 5y = 15

0.2x + 0.4y = 1.7 and 8.3x - 6.3y = -4.3

x/3 - y/5 = 4 and 3x/4 + 2y/3 = 6

1. 👍 0
2. 👎 0
3. 👁 353
1. 4x=8 and 5y=15
x=2 y=3
02.x+0.4y=1.7 and 8.3x-6.3y=-4.3
x=1.93 and y=1.31

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Algebra 1

Please, I am very confused in the Systems of Equations and Inequalities Unit Test that is only 27 questions. The test starts with: 1.Which graph represents the solution to the given system? y = –x + 2 and y = 3x – 1 I am in

2. ### Algebra

equations and inequalities unit test for questions 1-5, solve the equation 4. 3(4-2x)=-2x (1 point) a. -1*** b. 1 c. 2 d. 3 5. 5.4+0.2x=-1.4x+8.6 a. 2 b. -2 c. .2*** d. 20 For questions 6-7, simplify the expression 6. -4 - 5(x+8)

3. ### Math

Richa spends 1/4 of pocket money on chocolates,1/8 on pencils.At the end she had R's 40 left. How much did she have at the beginning? Many solved 25 questions of his math assignment.This was 1/8 of total questions. He does not

4. ### Math

Lesson 8: Systems of Linear and Quadratic Equations Check my work 1. Solve the system of equations. y = 2x^2 - 3 y = 3x - 1 a. no solution b. (-1/2, 5), (2, -5/2) c. (-1/2, -5/2), (2,5)*** d. (1/2, 5/2), (2, 5) 2.how many real

1. ### Math

A 100 point test contains a total of 20 questions. The multiple choice questions are worth 3 points each and the short response answer questions are worth 8 pints each. Write a system of linear equations that represents this

2. ### business algebra

Use row operations on augmented matrices to solve the given systems of linear equations. x + y − z = 0 x + 2y + 4z = −3 3x − y − 22z = 19

3. ### Science

Hi, I have two questions about biology I need help with. 1) Some questions fall outside the realm of science, which of the following questions could not be answered using the scientific method? A)What is the function of the

4. ### Probability

For hair color, Brown (B) is a dominant trait and Blond (b) is a recessive trait. If one parent has pure blond hair and one parent has hybrid brown hair, complete the Punnett square and questions that follow. a) What is the

1. ### Finite

Assume that the test has 5 true/false questions, and 10 multiple choice questions (4 options per questions), each with exactly one correct answer. If a student guesses randomly on each question, what is his expected score?

2. ### Math(Factorial)

A women student is to answer 10 out of 13 questions on a test. Find the number of choices where she must answer: (a) the first two questions; (b) the first or second questions but not both; (c) exactly 3 out of the first 5

3. ### Statistic

test consists of 10 multiple choice questions with five choices for each question. As an experiment, you GUESS on each and every answer without even reading the questions. What is the probability of getting exactly 7 questions

4. ### Math

Unit 3 Lesson 5 questions and answers. I need someone to checkmyanswers. Compare the pair of fractions. Use (This question is all 3 questions.) 1. 3/8----------1/4 (answer choices are >,, for 2. it is =, and for 3. it is >. Am I