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
AnnZ [28]
3 years ago
13

Use the elimination method to solve the system of equations. Choose the correct ordered pair. 5x - 2y = 9 3x + 4y = - 5 O A. (5,

- 5) O B. (1, - 2) OC. (7, 13) D. (3, 3)
Mathematics
1 answer:
marta [7]3 years ago
3 0

Answer:

Step-by-step explanation:

4(5x-2y=9)

-2(3x+4y=-5)

20-20x-8y=36

+6x-6x-8y=10

36-20x=10+6x-6x

36-36-20x-6x=10

-26x=10-36

-26x/-26=-26/-26

x=1

You might be interested in
Find profit or loss %<br> A) cp= 150 and profit =250
Anon25 [30]

Answer:

166⅓ %

Step-by-step explanation:

250/150 × 100

500/3 = 166⅓ %

Or 166.67%

7 0
3 years ago
hi, how is ur day! i need help on figuring out how to solve a Combine like terms to create an equivalent expression problem. can
Alenkasestr [34]

Step-by-step explanation:

to combine like terms you take things with either the same varibales or values

so 2y +4x-3y+8x+2y= 25

you combine the y's so 2-3=-1+2 =1

then x 4+8=12

so y+12x= 25

does that help?

8 0
3 years ago
The Regency Hotel has enough space at its entrance for six taxicabs to line up, wait for guests, and then load passengers. Cabs
maksim [4K]

Answer:

The appropriate solution is:

(1) 22.81 minutes

(2) 0.171

Step-by-step explanation:

According to the question, the values will be:

The service rate of guess will be:

= 5+3.5

= 8.5 \ minutes

The mean arrival rate will be:

\lambda =\frac{60}{5}

  =7.5 \ cabs/hr

The mean service rate will be:

\mu= 7.05 \ cabs/hr

(1)

The average time a cab must wait will be:

⇒ W_q=22.95-\frac{1}{7.05}

⇒       =\frac{161.798-1}{7.05}

⇒       =\frac{160.798}{7.05}

⇒       =22.81 \ minutes

(2)

The required probability will be:

⇒ P(X\geq 6)=\frac{1-2.115}{1-7.5}

⇒                  =\frac{-1.1115}{-6.5}

⇒                  =0.171

6 0
3 years ago
What is the power of 10 when 0.000028 is written in scientific notation
mezya [45]
-5 as that you would have to count that places to the left. You end decimal would have to be between 1 and 10, so it would not count the 8. I'm sorry if my explanation is not good, but that is the right answer
3 0
3 years ago
Read 2 more answers
The video store is having a sale on movie videos. They normally sell for $24.99, but are on sale for $12.99. Mr. Berger purchase
VikaD [51]
$24.99 x3 =74.97
$12.99 x3 =38.97
$74.97-$38.97 =$36.00 Saved
3 0
4 years ago
Other questions:
  • PLEASE HELP ITS A TIMED TEST! Jerry has 2 1/2 pounds of peanuts to share equally. He plans to share the peanuts among 5 people.
    5·2 answers
  • Glenda and Fiero are at a restaurant eating a meal that costs $30. They have a discount coupon that gets them 10% off the cost.
    9·1 answer
  • Divide and express the result in standard form. 8/7-i
    8·2 answers
  • X+4 is the same as 4+x
    14·2 answers
  • Solve system by elimination <br> -9x+7y=22<br> 9x-5y=-26
    9·1 answer
  • PLEASE I NEED HELP kitty’s
    6·1 answer
  • HELP PLEASE I WILL<br> MARK BRAINLIEST
    14·2 answers
  • A zip line starts on a platform that is 40 meters above the ground. The anchor for the zip line is 198 horizontal meters from th
    15·2 answers
  • David borrows $15,000 for a new car. He is charged 6% simple interest per year. If he paid $4500 in interest, how many years did
    10·1 answer
  • Simplify.<br> 10x² + 11x − 6=0
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!