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
xxMikexx [17]
2 years ago
10

Solve the following systems of equations without graphing 5x + 10y = 30 -5x +15y = 20

Mathematics
1 answer:
galben [10]2 years ago
8 0

Answer:

(2, 2)

Step-by-step explanation:

In this case, elimination would be the most efficient means of solving.

Simply, add the two equations, and you will be left with only one variable to solve for. (In this case y) You are then able to take your solution and plug it into an equation and solve for x, therefore giving you their intercept.\

5x + 10y = 30

+

-5x + 15y = 20

(x's cancel) 25y = 50

25y = 50

y = 2

5x + 10(2) = 30

5x + 20 = 30

5x = 10

x = 2

The solution to this equation is (2, 2)

You might be interested in
Suppose a group of x people rent a log cabin for $320 for a weekend in the mountains and plan to share the cost equally. If one
o-na [289]

Answer:450 $

Step-by-step explanation:

7 0
3 years ago
Is 2.6 bigger than 2.661
Sauron [17]
2.6 = 2.600
So, 2.6 is not bigger than 2.661
3 0
3 years ago
Read 2 more answers
timomthy began his math homework at 5:17 pm he finished at 5:49 how many minutes did he send on his math homework
daser333 [38]

Answer:

32 minutes

Step-by-step explanation:

49 - 17 = 32

Timothy spent 32 minutes on his math homework.

3 0
2 years ago
Read 2 more answers
9 packages of grape cost $24 how many packages of grapes can you buy for $8
Leto [7]
Ok. First you have to find the unit rate. Since you can buy 9 packages of grapes for $24, then you can get 1 grape package for $2.6667. If you have $8, you can buy 3 packages of grapes.
8 0
3 years ago
Read 2 more answers
Suppose that the auto loans from a bank are normally distributed with a mean of $23,334 and a standard deviation of 3,412. what
UkoKoshka [18]
To illustrate the information in the correct syntax:
X~N(23334, 3412²)
What we're being asked to find is P(X ≤ 26000).
In order to do this, we need to convert this value into one we can look up on the table for the standard normal distribution (Z).
To do this we use the formula:
Z = (X - μ)/σ
Z = (26000 - 23334)/3412 = 0.7813599... ⇒ 0.78
We can say:
P(X ≤ 26000) = P(Z ≤ 0.78) = 0.7823
4 0
3 years ago
Other questions:
  • Analyze the diagram below and complete the instructions that follow. Find M
    10·1 answer
  • Which statement is an example of the transitive property of
    12·1 answer
  • How can you find the area of parallelograms rhombuses and trapezoids?
    9·2 answers
  • Will give you brainlyist pls help​
    13·1 answer
  • HELP PLEASE 30 POINTS<br><br> 2x-3y=8 x-3y=8. solve with linear composition
    8·1 answer
  • The coefficient of y in 2x – 3y is ------------------- (3, -3, 2)
    6·1 answer
  • WILL MARK BRAINLEIST!!! PLEASE GIVE CORRECT ANSWER!!! GIRL IN NEED!!!
    15·1 answer
  • Derek had 20 trophies and 1/4 of them were golf trophies. How many trophies were not for golf?​
    5·1 answer
  • The sum of an infinite geometric series is $27$ times the series that results if the first three terms of the original series ar
    5·1 answer
  • circle 0 shown below has a radius of 27 inches.find to the nearest tenth of a degree the measure of the angle ,x, that forms are
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!