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
Elenna [48]
3 years ago
7

Pls help! will give brainlist!

Mathematics
1 answer:
nataly862011 [7]3 years ago
7 0

Answer:

B. (-2,3)

Step-by-step explanation:

-3x+5y = 21

x=2y-8

Substitution

-3(2y-8)+5y =21

-6y+24+5y=21

-y+24=21

-y=-3

y=3

Plug-in other equation

2*3-8=x

6-8=x

x=-2

You might be interested in
It took a pet store 7 weeks to sell 56 cats. What is the rate sold per week?
slava [35]

Answer:

About 8 cats were sold a week, so the rate sold per week: <u>8</u> ^‿^

8 0
3 years ago
Arturo ran 17 laps that were 1/5 mile long. Axel ran 7 laps that were 1/2 mile long. Who ran further, prove it. (5 sentence resp
Lelechka [254]

Answer:

Axel

Step-by-step explanation:

17*1/5=17/5

7*2/7=7/2

17/5=3.4

7/2=3.5

3.4<3.5

Axel ran farther

3 0
3 years ago
I'm so confused plz help me
Alinara [238K]
What one do you need help with?
8 0
3 years ago
Which angle is vertical to 3 in the given figure? You may assume that the lines are straight.
ycow [4]
Angle 5 is vertical to angle 3.
8 0
3 years ago
(PHOTO) Please help me need this done by tomorrow thank you.​
Tomtit [17]

Answer:

2x+78=5x+15

78-15=5x-2x

3x=63

x=21

7 0
2 years ago
Other questions:
  • Emily recorded the test scores of the students in her class in the dot plot below. Which measure of center would be best to use
    5·2 answers
  • What is the answer to this problem
    13·1 answer
  • Simplify.
    13·2 answers
  • Divide. Round to the nearest tenth if necessary. 7.24 divided by 7
    15·1 answer
  • How do you solve this? need help asap!! find y!!
    7·1 answer
  • Line A is represented by the equation given below.
    14·1 answer
  • As part of an insurance company’s training program, participants learn how to conduct an analysis of clients’ insurability. The
    9·1 answer
  • Write an arithmetic sequence that has a common difference of -3 and whose
    8·1 answer
  • What is the sum of the measuers of the extoir angles of any convex poloygon
    15·1 answer
  • F(x) = 3x+2What is f(5)?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!