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
Sav [38]
3 years ago
8

5x+ 4y = -20 5x + 12y = -10 HELPPPPPP

Mathematics
1 answer:
Serggg [28]3 years ago
4 0

Answer:

We are to find x and y in this equation.

5x+4y= -20.

- 5x+12y= -10.

which is y=5/4 or 1.25.

then substitute y=1.25 into eqtn I.

5x+4(1.25)=-20.

5x+5= -20.

5x=-20-5.

5x= -25.

x= -5.

You might be interested in
Steve works as a football referee for 10 hours a week, and as a bus driver for 30 hours per week.if both jobs pay $21 per hour,h
arsen [322]

Answer:

$840

Step-by-step explanation:

First, add 30 to 10.

Then, multiply your answer (40) by 21.

Finally, you get your final answer of $840.

6 0
3 years ago
A card is drawn at random out of a​ well-shuffled deck of 52 cards. Find the probability of drawing a six comma seven comma or e
Rina8888 [55]

Answer: \frac{3}{13}, or ~23.07%

Step-by-step explanation:

There are 52 cards in your average deck.

For this question, you need the numbers of the cards in the deck. There are four of each number from 2 through 10, and four aces, jacks, queens, and kings.

Considering there are four 6s, four 7s, and four 8s, there are 12 cards that fit the description.

Divide 12 by the total number of cards in the deck, 52, to get your answer.

8 0
3 years ago
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
pantera1 [17]

Answer:

-5/2 x -33/4

Step-by-step explanation:

(-11/2 x + 3) -2 (-11/4 x -5/2)

(-11/2 x + 3/1) -2 (-11/4 x -5/2)

The LCM of 2 and 1 is 2, and the LCM of 4 and 2 is 4.

(-11/2 x + 6/2) -2 (-11/4 x -20/4)

( -5/2x) -2 (-31/4)

-5/2x -2 -31/4

-5/2x -2/1 -31/4

LCM of -2 -31/4 is 4

-2/4 -31/4

-33/4

-5/2x -33/4 in simplest form.

4 0
2 years ago
What is the magnitude of an earthquake with a seismic energy<br> of 1.8 x 10
romanna [79]

Answer:

Do u mean a 10.0 earth quake?

Step-by-step explanation:

7 0
3 years ago
Identify the indicated angles as adjacent, vertical, linear pair or adjacent/linear pair
Scorpion4ik [409]

Answer:

it is an adjacent/linear pair

6 0
3 years ago
Other questions:
  • (38x-8)(2x+38-6)(8x-10)
    6·1 answer
  • - 3(x - 6) + 6 = 5x - 6. work<br>​
    7·2 answers
  • What is 8.78 divided by 8
    15·2 answers
  • Juan wants to paint somthing in the shape of a right rectangle prism. The prism is 17 in long 11 in wide and 9 in high. He had e
    6·1 answer
  • 1. Maryann is tracking the change in her vertical jump over 6 months. Use the table to write a linear function that models her j
    14·1 answer
  • Which of these tables represents a linear function? A 2-column table with 4 rows. Column 1 is labeled x with entries 3, 4, 5, 6.
    14·2 answers
  • Shane's family traveled 7/10 of the distance to his grandfather’s house on Saturday. They traveled 2/3 of the remaining distance
    7·1 answer
  • Guys please help ;w; and plz explain what in the world is this
    12·1 answer
  • Evaluating to Determine Equivalent Expressions
    8·1 answer
  • 1
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!