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
irga5000 [103]
3 years ago
10

What is the solution of the system? use substitution. 5x - y =3 6x - y=8

Mathematics
1 answer:
Bess [88]3 years ago
5 0
5x - y = 3 ------------ (1)
6x - y = 8 ------------ (2)

From (1):
5x - y = 3
y = 5x - 3 ------------ Sub into (2)

6x - (5x - 3) = 8
6x - 5x + 3 = 8
x + 3 = 8
x = 5 ------------------- Sub into (1)

5x - y = 3
5(5) - y = 3
25 - y = 3
y = 25 - 3
y = 22

---------------------------------
Ans: x = 5, y = 22
---------------------------------

You might be interested in
you get 90 pills from the pharmacy every 28 days . you take 3 per day., but you lost 8 pills. how many pills per day are you lef
Ratling [72]
If you have 90 pills from the pharmacy every 28 days, and you take 3 per day, but lost 8. You will end up with 82 when you lost the 8 pills. Does it tell you how many days you took the pills for or is it just asking what you have left after losing 8 of them?
7 0
3 years ago
NEED HELP ASAPPP !! find the y-intercept of the line of the graph.​
Anettt [7]

Answer:

the Y intercept is (0,-2)

Step-by-step explanation:

It is the point on the graph which the line goes through the Y axis

5 0
3 years ago
Jessica always uses the same ratio of green beads to blue beads when she makes necklaces. The graph shows these equivalent ratio
ValentinkaMS [17]
A set of data is normally distributed with
7 0
3 years ago
10% of what is 80,000?
Nataly [62]

Answer:

let the no be x ..then,

10% of x =80,000

10x=80,000*100

x=80,00,000/10

x=8,00,000

hence 10%of 8,00,000 is 80,000

6 0
3 years ago
Read 2 more answers
Elijah brought a total of 16 pounds of peanuts and cashew nuts and paid $49.50 if peanuts cost $2.75 per pound and cashews nuts
maria [59]

Answer:

The number of pounds of cashew is 11

Step-by-step explanation:

Let P represent the peanut

Let C represent the cashew nut.

From question, we were told that Elijah brought a total of 16 pounds of peanuts and cashew nuts. This can be written as:

P + C = 16 (1)

The total cost = $49.50

Cost per peanut = $2.75

Cost per cashew = $3.25

The above can be represented as:

49.50 = 2.75P + 3.25C. (2)

From equation 1,

P + C = 16

P = 16 — C

Substitute the value of P into equation 2:

49.50 = 2.75P + 3.25C.

49.50 = 2.75(16 — C) + 3.25C

49.50 = 44 — 2.75C + 3.25C

49.50 = 44 + 0.5C

Collect like terms

49.50 — 44 = 0.5C

5.5 = 0.5C

Divide both side by 0.5

C = 5.5/0.5

C = 11

Therefore, the number of pounds of cashew is 11

8 0
3 years ago
Other questions:
  • Sketch the following to help answer the question. Kite WXYZ has a short diagonal of XZ and a long diagonal of WY. The diagonals
    12·2 answers
  • Using the information below calculate the area of a triangle. base = 5 meters height = 10 meters
    8·1 answer
  • Dummy variables and autocorrelation. refer to the savings–income regression discussed in chapter 9. using the data given in tabl
    8·1 answer
  • Find the ordered pairs for the x- and y-intercepts of the equation 2x-6y=24 and select the appropriate option below.
    12·1 answer
  • The total temperature change over 3 days in gritty city was -6 celsuis What was the average temperature change each day?
    9·2 answers
  • Please help all these questions on the volume of a sphere
    12·1 answer
  • Simplify<br>-6√20+2√45+7√5 <br><br>show Woking out to prove ans please​
    12·1 answer
  • Find the scale factor
    10·1 answer
  • Find the slope of the line <br>​
    9·1 answer
  • How do you find x in the question \frac{x}{10}=0.1 how do you find out what x is???
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!