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
WARRIOR [948]
2 years ago
7

Solve the system. 3x + 4y = 7 2x-y=1 What does x and y equal

Mathematics
1 answer:
emmainna [20.7K]2 years ago
5 0

Answer:

x=1 y=1

Step-by-step explanation:

Let's use the elimination method.
3x+4y=7
2x-y = 1 (multiply both sides by 4)
8x-4y=4
3x+4y=7

(add both equations together)
11x=11
x=1
Plug x=1 into either of the equations
2(1) - y=1
2-y=1
2=1+y
y=1

You might be interested in
Heather collects shells. The picture shows the 18 shells that she found on her family beach vacation. She wants to use all of
IRISSAK [1]
Answer:
D) 9 postcards with 2 shells each.

Explanation:
9 x 2 = 18
Therefore, 9 postcards with 2 shells each is the correct answer.

Please give brainliest.
6 0
2 years ago
Let's consider the time as a discrete variable with an increment of 1 minute. You arrive at a bus stop at 10 AM, knowing that th
Dafna11 [192]

Answer:

a) 2/3

b) 1/3

Step-by-step explanation:

Let X be the random event that measures the time you will have to wait.  

Since time is uniformly distributed between 10 and 10:30 in intervals of 1 minute

P(n < X ≤ n+1) = 1/30 for every minute n=0,1,...29.

a)

P( X > 10) = 1 - P(X ≤ 10) = 1 - 10/30 = 2/3

b)

P(10 <  X ≤ 20) = (20-10)/30 = 1/3

7 0
2 years ago
PLS HELP ME ASAP FOR 9) A and B (SHOW WORK!!) + LOTS OF POINTS!
statuscvo [17]
A.. 9.5*3.6=34.2 then 34.2/5.7= 6 so 6 is your answer

B. 16.2*5.7= 92.34 then 92.34/3.6= 25.65
4 0
3 years ago
Read 2 more answers
Jaime went to the mall with $42. If he bought a T-shirt and had $18 left, how much did the T-shirt cost Jaime in dollars?
nirvana33 [79]

Answer:

$24

Step-by-step explanation:

You simply do $42-$18

=24

4 0
3 years ago
Read 2 more answers
24 POINTS PLEASE
Alenkasestr [34]

Answer:

2.5X=1.0 try this i think

Step-by-step explanation:

tRY THAT

4 0
3 years ago
Other questions:
  • They 1107 Kids divided by 56 Teams how many kids are in a team
    10·2 answers
  • 3(10-2^3)+7 What is this supposed to be please help.
    13·2 answers
  • Sheldon invests $15,000 in an account earning 3% interest, compounded annually for 12 years. Seven years after Sheldon's initial
    9·1 answer
  • Anna is constructing a line segment that is congruent to another segment AB. For the construction, which tool should be used to
    9·2 answers
  • Simplify expresion 5x³y(2x+3y-4) =
    7·2 answers
  • After being rearranged and simplified, which equation cannot be solved using
    9·1 answer
  • Factor 6x2 + 192 + 3
    7·2 answers
  • Which expression is equivalent to -30 - (8)
    6·1 answer
  • 4-6 study guide and intervention isosceles and equilateral triangles
    8·1 answer
  • To make a specific hair dye, a hair stylist uses a ratio of 1 oz of red tone, oz of gray
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!