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
givi [52]
2 years ago
15

If possible, use elimination to solve the system of equations. 5x + 10y = 7 4x + 8y = 3

Mathematics
1 answer:
Sergeeva-Olga [200]2 years ago
8 0

Hello!

Let's solve this question by using elimination.

5x + 10y = 7

4x + 8y = 3

Let us solve for "y" first by making our "x" variables cancel each other out.

4(5x + 10y = 7)

-5(4x + 8y = 3)

20x + 40y = 28

-20x -40y = -15

0 = 13

Since both the "x" and "y" variables were canceled out after trying to eliminate one of the variables, we can't find a solution since we now have no variables to solve for, therefore there is no solution.

Answer: No solutions

You might be interested in
If α and β are the zeroes of the polynomial 2x2 + 3x – 7, then find a polynomial whose zeroes are and .
Drupady [299]

Answer:

\frac{-\sqrt{65} - 3 }{4}, \frac{\sqrt{65} + 3}{4}

Step-by-step explanation:

Since we cannot factor the expression, we must use quadratic formula: x = \frac{-b +/-\sqrt{b^2 - 4ac} }{2a}

Plug in <em>a</em> for 2, <em>b</em> for 3, and <em>c</em> for -7 and you should find your roots.

5 0
3 years ago
The Sweet Treat sells 40 lbs of gummy bears and 30 caramel apples every day. At this rate, how many lbs of gummy bears will be s
Sliva [168]

Answer:

8 pounds of gummy bears.

Step-by-step explanation:

To find this answer I did:

40/30 = 4/3

Then,

4/3 x 6 = 24/3

This simplified is 8.

To check:

8/6 x 5 = 40/30

3 0
3 years ago
Say that you are about to make a major purchase and would like to save money on sales tax. Which of these is a viable way to red
mafiozo [28]

Answer: c.) Sales tax varies by state, so you can travel to a state with a lower tax rate and make your purchase there.

Step-by-step explanation:

Sales tax rates vary significantly from state to state, so you can save money if you know what state has a lower sales tax rate, so you can travel to that state and make your purchase there.

There is a list of states with lower sales tax rates:

1. Alaska 1.43% Sales tax rates

2. Hawaii 4.41% Sales tax rates

3. Wyoming 5.36% Sales tax rates

4. Wisconsin 5.44% Sales tax rates

5. Maine 5.50% Sales tax rates

6. Virginia 5.65% Sales tax rates

<h2><em>Spymore</em></h2>
5 0
3 years ago
The monthly utility bills in a city at e normally distributed, with a mean $100 and a standard deviation of $13. find the probab
dmitriy555 [2]

Answer:

how's your day

Step-by-step explanation:

how's your day

5 0
2 years ago
Helpppppp me please
nataly862011 [7]

Answer:Sure thing? But first what do you need help with and maybe just maybe I will help you with whatever you need help with?

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • a sales manager noticed that the number of units sold two T-shirt style A and style B, was the same during june and july. in jun
    11·1 answer
  • List all integers between −100 and 100 that are congruent to −1 modulo 25.
    7·1 answer
  • One canned juice drink is 25% orange juice; another is 10% orange juice. How many liters of each should be mixed together in ord
    7·1 answer
  • Which is an equation of the line through (-8, -4) and (4, 5)?
    10·2 answers
  • Hey can you please help me posted picture of question
    8·2 answers
  • Evaluate 8 - 4.7y - x, when y = -1 and x = 2.<br> A. -10.7<br> B. -9.7<br> C. 9.7<br> D. 10.7
    8·1 answer
  • What is the best estimate for the value of 3/2
    7·1 answer
  • Select all the groups of numbers that are ordered correctly from least to greatest.
    9·2 answers
  • Write an equation in slope intercept form:
    11·1 answer
  • Help please I need tihs
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!