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
Rus_ich [418]
3 years ago
7

what should you multiply the first equation (top equation) by in order to eliminate the variable x when the two equations are ad

ded together? 3x-y=1 -12x+y=7
Mathematics
1 answer:
sammy [17]3 years ago
6 0
Multiply by 4.
______
You might be interested in
PLEASE HELP THANK YOU Emma also wonders how long it will take her balance of $300 to reach $450, assuming she doesn't make
IgorLugansk [536]

Answer:4 years

Step-by-step explanation:

8 0
3 years ago
Each patron pays an annual fee of $36 to the library. If the library collects $20,304 from the annual fee, how many patrons are
choli [55]

Answer:

564 patrons.

Step-by-step explanation:

20,304/36 = 564

5 0
2 years ago
A group of preschoolers has 8boys and 24 girls. What is the ratio of girls to all children
Zepler [3.9K]
The  total number of kids:
8+24 = 32
the ratio is 24:32
it simplifies into 3:4
5 0
3 years ago
Read 2 more answers
Help me out! <br><br>;parallel lines have equal/unequal slopes,
labwork [276]
Parallel lines have equal slopes
6 0
3 years ago
Read 2 more answers
For the function shown below, find f(3): f(x)=2x^4-8x^2+5x-7
a_sh-v [17]

We have been given the function

f(x)=2x^4-8x^2+5x-7

We have to find the value of f(3). In order to find the same, substitute x=3 in the given function.

f(3)=2(3)^4-8(3)^2+5(3)-7

Now, we simplify this step by step.

First of all 3^4=81\text{ and }3^2=9. Thus, we have

f(3)=2\times 81 -8\times 9+5(3)-7

Now, we can easily simplify it by PEMDAS

f(3)=162-72+15-7

f(3)=98


Therefore, the value of f(3) is 98.

3 0
3 years ago
Read 2 more answers
Other questions:
  • The equation 1.5r+15=2.25r1.5r+15=2.25r represents the number rr of movies you must rent to spend the same amount at each movie
    11·1 answer
  • Identify the equation of the graph.
    14·1 answer
  • can you pleeeasse break that Johnny question down step by step I have to show the work thanks I'll give u the brainliest?​
    11·1 answer
  • A varies directly as b. If A = 3 when b = 24, find b when A = 10
    11·1 answer
  • Three less than the quotient of a number and 6 exceeds 1. What are the possible values? (Answer the first part.)
    9·1 answer
  • When finding the margin of error for the mean of a normally distributed population from a sample, what is the critical probabili
    5·2 answers
  • Tyler used 114 gallons of paint to paint 47 of a fence. How many gallons will it take to paint the whole fence?
    8·1 answer
  • 4053 x 6<br> ...........
    15·2 answers
  • Anybody can help me on this
    8·2 answers
  • The distance between two points is 6_/6.One endpoint is (4,-1). It is known that the y-coordinate of the other endpoint is 9.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!