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
murzikaleks [220]
3 years ago
6

Explain: What is the solution to this system of equations? 2x+y=20 6x-5y=12

Mathematics
1 answer:
bazaltina [42]3 years ago
3 0

Answer:

solution set is (x,y) = (7,6)

Step-by-step explanation:

solving by substitution method

2x +y=20--------------1

6x-5y=12---------------2

from equation 1, solve for y

2x+y=20

y= 20-2x------equation 3

adding value of y in equation 2

6x-5y=12

6x-5(20-2x)=12

6x-100+10x=12

16x= 12+100

16x= 112

x= 112/16

x=7

adding value of x in equation 3

y= 20-2x

y= 20- 2(7)

y=20-14

y=6

so solution set (x,y) = (7,6)

You might be interested in
Samantha needs 4/5 yard of fabric to make costumes for the school play. Write and solve and equation to find how many costumes s
ArbitrLikvidat [17]

Answer:

Step-by-step explanation:

Samantha needs 4/5 yard of fabric to make costumes for the school play.

Let x represent the number of yards of fabric that she has

Let y represent the total number of costumes that she can make from x yards of fabric.

Since one costume require 4/5 yards of fabric, y costumes will require

x ÷ 4/5 = x×5/4 = 5x/4

The equation will be

y = 5x/4

to find how many costumes she can make with 8 yards of fabric, it becomes

y = (5×8)/4

y = 40/4 = 10

5 0
3 years ago
I need to find the slope, x intercept and y intercept please help
Sati [7]
Solve for y. the slope will be m, y intercept will be b
6 0
3 years ago
The box plots show the math scores of students in two different classes. Based on the box plots, which statement is correct?
Allisa [31]

Based on the box plots, the statement which is correct is that: A. The median score of Class A is greater than the median score of Class B.

<h3>What is a box and whisker plot?</h3>

In Mathematics, a box plot is also referred to as box and whisker plot and it can be defined as a type of chart that can be used to graphically or visually represent the five-number summary of a data set with respect to locality, skewness, and spread.

Additionally, the five-number summary of any box plot (box and whisker plot) include the following:

  1. Minimum
  2. First quartile
  3. Median
  4. Third quartile
  5. Maximum

By critically observing the box plot (box and whisker plot) which represent the math scores of students in in two different classes, we can reasonably and logically deduce the following median scores;

Median score of class A = 80

Median score of class B = 75

Therefore, a median score of 80 in Class A is greater than the median score of 75 in Class B.

Read more on box plots here: brainly.com/question/14277132

#SPJ1

6 0
1 year ago
Adam got 97, 70, 89, 99, 100, 78, 79, 89, 77, and 72 on his reading test. What is the mean of Adam's reading test?
ipn [44]

Answer: 85

Add up all the numbers: 97+70+89+99+100+78+79+89+77+72=850

Divide 850 by the amount of numbers:

850/10=85

I hope this helps and good luck! :)

5 0
3 years ago
Please help or i am grounded
Dahasolnce [82]

Answer:

x=140

Step-by-step explanation:

Do not get grounded.

An angle at a point is 360°.

So, x+120+70+30=360

x+220=360

x=140

3 0
3 years ago
Other questions:
  • F(x)=x+3 and g(x)=x-5
    9·1 answer
  • PLZ HELP ME ASAP PLZ PLZ PLZ!!!!! I NEED LOTS OF HELP!!! I USED 40 POINTS
    11·1 answer
  • Solve 3x-7=4+6+4x and show your work.<br> Is there one solution, infinite solutions, or no solution?
    14·2 answers
  • Giovanni bought 30 shares of Stock XYZ at the close price of $6.31. He
    15·2 answers
  • how can you tell before you divide 425 by 9 that the first digit of the quotient is in the tens place?
    8·1 answer
  • Rally sold 30 flower baskets at a market. She purchased 30 baskets for $142.65, 185 yards of ribbon for $.07 per yard, and $252.
    13·1 answer
  • PLZ HELP ITS DUR RIGHT NOW AND PLZ ANSWER TRUTHFULLY
    14·1 answer
  • Help!!!!! Will gib brainliest!
    10·1 answer
  • In the diagram below , Triangle ABC and triangle XYZ are similar. Which equation could be used to find the lenght of YZ in inche
    10·1 answer
  • Write an algebraic expression that models the word phrase.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!