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
vaieri [72.5K]
3 years ago
8

Need help pls solve 7x-4y=-7 5x+y=22

Mathematics
2 answers:
Vinil7 [7]3 years ago
8 0
I think this would be the correct answer <span>{x,y} = {3,7}</span><span> </span><span />
aev [14]3 years ago
3 0
<span>7x-4y=-7
5x+y=22

multiply 4 on the 2nd equation
</span>20x+ 4y=88

now you have
7x -4y = -7 
20x + 4y = 88
--------------------add
27x = 81
x = 3

7x-4y=-7
7(3)-4y=-7
-4y = -28
y = 7

answer (3, 7) is the solution
You might be interested in
7. Melissa bought 8 yards of string to make bracelets. She wants to cut the string in equal pieces that is 1/2 yard
ratelena [41]

Answer:

16 i think

Step by Step Explanation:

4 0
3 years ago
Read 2 more answers
PLEASE HELP ME WITH THIS QUESTION
lianna [129]
3/4^7 is the answer
3 0
2 years ago
Mike jogged 6 laps around a 0.25-mile track on Mondat and 7 laps on Tuesday. How many miles did he jog on Monday and Tuesday com
Alex787 [66]
Given:
Monday: 6 laps around a 0.25-mile track
Tuesday: 7 laps around a 0.25-mile track

Total miles jogged on both days.

0.25(6 + 7) = 0.25(13) = 3.25 miles

Mike jogged a total of 3.25 miles on Monday and Tuesday combined.
7 0
3 years ago
Read 2 more answers
A kitchen wall tile is shaped like a parallelogram. The base of the tile is two times the height of the tile . The height of the
SIZIF [17.4K]

Answer:

12.5 in²

Step-by-step explanation:

Given:

Height of tile = 2.5 in

Base of tile = 2*height of tile = 2*2.5 = 5 in

Length of other side of tile = 2.5 in

Required:

Area of the tile

SOLUTION:

Area of the tile = area of parallelogram

All we need to calculate the area of the tile, is the base and the height.

Area of parallelogram = base × height

Area of tile = 5 × 2.5 = 12.5 in²

5 0
3 years ago
There were 976 students that attended assemblies on bullying prevention throughout the
AveGali [126]

Answer:

245+368=?-976

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • The sum of two trinomials is 7x2 - 5x + 4. If one of the trinomials is 3x2 + 2x - 1, then what is the other trinomial?
    7·1 answer
  • What does the slope mean
    9·1 answer
  • What is the value if x a. 20 b. 25 c. 45 d. 65
    14·1 answer
  • Josephine is taking a college course, and her professor bases the course grade on the average of 2 tests taken in the semester.
    13·1 answer
  • Which area is greatest? <br> a. b=4, h=3.5<br> b. b=0.8, h=20<br> c. b=6, h=2.25<br> d. b=10, h=1.4
    8·1 answer
  • I bought a new pair of basketball shoes on sale they were 30 percent off the original price was $85 how much was the discount ho
    5·1 answer
  • Macy had 20. in the bank and deposited 50 more. how much does she have now
    6·2 answers
  • What is the point estimate for the number of cars sold per week for a sample consisting of the following weeks: 1, 3, 5, 7, 10,
    10·2 answers
  • You are kayaking at a pace of 63 feet every 12 seconds. Your friend's pace is 21 feet every 2 seconds. Are you and your friend k
    8·1 answer
  • The first term of a geometric sequence is 3. The sum of the first two terms is 15 and the sum of the first 3 terms is 63.  Deter
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!