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
lara31 [8.8K]
3 years ago
9

-3x + y = 22 -12x – 10y=-10

Mathematics
1 answer:
dimaraw [331]3 years ago
8 0

Answer:

<h3>               x = -5,  y = 7</h3>

Step-by-step explanation:

-3x + y = 22     ⇒  y = 3x + 22

-12x - 10y = -10  and  y = 3x + 22

-12x - 10(3x + 22) = -10

-12x - 30x - 220 = -10

               +220       +220

 - 42x  = 210  

 ÷(-42)     ÷(-42)

    x = -5

y = 3(-5) + 22 = -15 + 22 = 7

You might be interested in
Help!! Whoever tries gets brainliest!
Rzqust [24]

Answer:

q: quarters, 2q, 2q + 22, & 3(2q+22)

Step-by-step explanation:

A: The variable “q” will be the number of quarters

B:

2q will be the numbers of dimes

2q+22 will be the numbers of nickels

3(2q + 22) will be th number of pennies

7 0
2 years ago
a movie sells tickets for for the cost of 4$ and 6$.there is a total of 75 tickets for a total of 400$,how many tickets were sol
sattari [20]
50 $6 TICKETS WERE SOLD
25 $4 TICKETS WERE SOLD

hope this helped :)
4 0
2 years ago
Watermelons cost $0.35 per pound. Joseph’s watermelon costs between $4.20 and $5.25. Which compound inequality correctly represe
Ahat [919]
Working is attached :)

4 0
2 years ago
HELP!!! WILL MARK BRAINLIEST!!!
NikAS [45]

Answer:

D. 11

Step-by-step explanation:

...

4 0
3 years ago
Pencils that were selling at three for 25 cents are now on sale at five for 29 cents. How much money, in cents, would you save b
natita [175]

Answer:

We would save $1.52 cents

Step-by-step explanation:

3 the pencil were at sale for 25 cent

1 pencil = 25 cent/3 =8.33 cent per one pencil

5 the pencil were at sale for 29 cent

1 pencil = 29 cent/5 =5.8 cent per one pencil

If we bought 60 pencil in group of 3 for 25 cent

=60/3= 20 pencil

25cents * 20 pencil = 500 cent per 60 pencil

If we bought 60 pencil in group of 5 for 29 cent

=60/5= 12 pencil

29cents * 12 pencil = 348 cent per 60 pencil

From the analysis, the 5 pencil for 29 cent is cheaper are we are going to save: 500-348= 152 cents

7 0
3 years ago
Other questions:
  • HELPPP Plzzzzzzzzzz ASAP
    7·2 answers
  • Solve: 6 yd. 9 ft. 4 in. × 2 =
    14·2 answers
  • Find the product. -mnp(3m - 5n 7p)
    15·2 answers
  • Juan goes to the bowling alley every three weeks Percy goes to the bowling alley every five weeks if Juan and Percy meet the fir
    11·2 answers
  • Help your girl out!!
    14·1 answer
  • A milk truck has a diameter of 10 and feet and a height of 50 feet. How much milk can the truck hold?
    7·1 answer
  • I don't know what to write here but Brainly says i need to put 20 characters at least so umm that's why Im talking to much for s
    14·2 answers
  • 260.94 in word form ! i really need help w this !!
    5·2 answers
  • Which of the following is unbalanced?
    8·1 answer
  • I'm lost on this please help
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!