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
Varvara68 [4.7K]
3 years ago
8

Solve each system by substitution. 11) 3x - y = 20 y=-2

Mathematics
2 answers:
ehidna [41]3 years ago
8 0

Answer:

lol you stupid how do you not know

Step-by-step explanation:

lol

Vesnalui [34]3 years ago
5 0
Hello there! I think x=6 because you would substitute “-2” for “-y” and when you multiply two negatives they turn into a positive. You then put your “2” on the other side of the equal marks. Then just do 3x/18 and you get 6.
You might be interested in
Last year, sales at a book store increased from $5,000 to $10,000. This year, sales decreased to $5,000 from $10,000. What perce
suter [353]

Sales increased 50% last year, from $5,000 to $10,000. When sales dropped from $10,000 to $5,000 this year, sales decreased 50%

5 0
3 years ago
Which one of the following graphs is the graph of:3if -2 < x < 01if x = 0if 0 < x≤ 2f(x) =A.44B.4-²-(x + 1)?
In-s [12.5K]

Given the piecewise function:

f(x)=\begin{cases}{3\text{ if -2}\leq x

Let's select the graph which represents the function.

We have the graph below:

For f(x) = 3, the graph will be a horizontal line on y = 3 which has an open dot on x = 0 and a closed dot on x = -2

For f(x) = 1 if x = 0, the graph will have a closed dot located on the point (0, 1)

For f(x) = -(x + 1) if 0 < x ≤2, the graph will have a negative slope with an open dot on (0, -1) and closed dot on (2, -3)

ANSWER:

Graph B

8 0
1 year ago
Tell what whole number you can substitute for A in each list so the numbers are ordered from least to greatest. If there is none
hodyreva [135]

Answer: None

Step-by-step explanation:

If A=4, say for example, our list becomes: 3/4, 4/5, 75%.

This in decimal form becomes: 0.75, 0.8, 0.75 which is clearly not in ascending order.

If A =5, the list becomes 3/5, 5/5, 75% which clearly is 0.6, 1, 0.75 which is also not in ascending order.

For any value of A greater than 5, the second term A/5 is greater than 1 thus being less than the third term 0.75.

Therefore there is no whole number A that makes the list true.

4 0
3 years ago
Is 7/8 greater than 3/4
lubasha [3.4K]

Answer: yes

Step-by-step explanation:

convert 3/4 so the denominator is the same for both fractions. you would just double the fraction : 6/8

now compare 7/8 and 6/8

7/8 is closer to a whole so yes it is greater x

8 0
3 years ago
Read 2 more answers
Anyone know the answer to this? Thanks :)
AnnyKZ [126]

Answer:

8/9

Step-by-step explanation:

8/9= 0.88888888889

8 0
3 years ago
Read 2 more answers
Other questions:
  • I am going to get a b in abstract algebra do i suck at math
    8·2 answers
  • Choose the best definition for the following term: substitution
    14·2 answers
  • Find (f + g)(x). f(x) = -3x + 2 g(x) = x3 a. x3- 3x + 2 c. x3 + 3x -2 b. -x3- 3x +2 d. x3 Please select the best answer from the
    10·1 answer
  • Square root of 100? :(
    8·2 answers
  • Sarah drives 55 mi/h for h hours. which expression shows the number of miles that sarah drove?
    5·2 answers
  • Leanne multiplied 8 x 4.3 and got 32.24. Is Leanne correct?Use an area model to explain your answer
    9·1 answer
  • Please help! <br> find the equation (in terms of x) of the line through the point (-4,3) and (3,-2)
    13·2 answers
  • Roshanna Lincoln's landscaping company ships its packages through Fleet Quick Delivery. Fleet charges ​$4 plus ​$0.60 per pound
    15·1 answer
  • What statement describe the expression 18+1/2×(9-4)
    9·2 answers
  • solve 49x + 9 equals 49x + 83. does an equation have one solution, no solution, or infinitely many solutions? write two equation
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!