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
MArishka [77]
3 years ago
13

Alvin’s first step in solving the given system of equations is to multiply the first equation by 2 and the second equation by –3

. Which linear combination of Alvin’s system of equations reveals the number of solutions to the system?
9x + 4y = 36

6x + 2.5y = 24

Infinite solutions: 0x – 0y = 0
No solutions: 0x + 15.5y = 144
One solution: 0x + 0.5y = 0
Two solutions: 0x – 0.5y = 60
Mathematics
2 answers:
Ksivusya [100]3 years ago
4 0

Answer:

One solution: 0x + 0.5y = 0

Step-by-step explanation:

9x + 4y = 36

6x + 2.5y = 24

2 * Eq. 1

18x + 8y = 72

-3 * Eq. 2

-18x - 7.5y = -72

Add the multiples of the equations.

0x + 0.5y = 0

Answer: One solution: 0x + 0.5y = 0

navik [9.2K]3 years ago
3 0

Answer:

c

Step-by-step explanation:

You might be interested in
In the game of​ roulette, a player can place a ​$9 bet on the number 11, and have a 1/38 probability of winning. If the metal ba
damaskus [11]

Answer:

1. What is the expected value of the game to the​ player?

Expected value= -$0.47368

2. If you played the game 1000​ times, how much would you expect to​ lose?

Expected value= -$473.68

Step-by-step explanation:

1. What is the expected value of the game to the​ player?

Expected value can tell how much you will gain/lose every time you do the game. To find the expected value you need to multiply every value with its chance to occur. There are two types of events here, winning and losing. You have 1/38 chance of winning $315 and 37/38 chance of losing $9.  

The expected value will be:

expected value= 1/38 * $315 + 37/38*(-$9) = $8.2894 - $8.7631

expected value= -$0.47368

You are expected to lose $0.47368 every time you play

2. If you played the game 1000​ times, how much would you expect to​ lose?

Expected value calculated for each roll. If you want to know how much you gain/lose by multiple rolls, you just need to multiply the expected value with the number of rolls. The game has negative expected value so you are expected to lose money instead of gaining money. The money you expected to lose will be:

number of roll * expected value

1000 timer * -$0.47368/time= -$473.68

You are expected to lose $473.68 if you play the game 1000 times.

6 0
2 years ago
A painter designs a mural with the shape shown below. One pint of paint will cover 50 square feet. How many whole pints of paint
shutvik [7]

Answer:

You need the total of square feet of the mural before you can divide 50 square feet to it and get your answer of how many pints of paint you will need.

For example.

Mural size is 2800 square feet

1 pint per 50 square feet

Work out problem.

2800 square feet ÷ 50 square feet= ?

 = 56 pints of paint

5 0
2 years ago
The figure shows a blueprint of a dining room, kitchen, and living room. Each square has a side length of 1/4 inch. Tile costs $
Anastaziya [24]

Answer:

The cost of the tile for the kitchen is $1,680

Step-by-step explanation:

step 1

we know that

The scale drawing is \frac{1}{16}\frac{in}{ft}

The dimensions of the kitchen in the blueprint are

L=3(1/4)=3/4 in

W=5(1/4)=5/4 in

step 2

Find the actual dimensions of the kitchen

Divide the dimensions of the kitchen in the blueprint by the scale drawing

L=(3/4)/(1/16)=12 ft

W=(5/4)/(1/16)=20 ft

The area is equal to

A=(12)(20)=240 ft²

step 3

Find the cost of the tile for the kitchen

7(240)=$1,680

3 0
3 years ago
Read 2 more answers
What's the answer its for a final exam
Paladinen [302]

Answer:

x would be 10. If you plug in 10 for 7x and 10 you'll get 30+7(10)=10(10). YOu then distributes them and get 30+70=100. SO the angle measure for the exterior angle is 100 degrees.

6 0
3 years ago
Read 2 more answers
There are 6 cans of soup in a kitchen cabinet: 2 chicken noodle, 3 tomato, and 1 vegetable. You select a can without looking. Wh
Brut [27]
The probability is 4/6. 
6 0
3 years ago
Read 2 more answers
Other questions:
  • I am desperate i need help please!!! Imagine that a friend asks you for investment advice. He has $10,000 to invest and he has a
    6·1 answer
  • What expressions equal to 19
    9·1 answer
  • What is y= |x + 5| -4
    6·1 answer
  • Triangle A and Triangle B have the same base. The height of Triangle B ice the height of Triangle A. How many times greater in t
    10·1 answer
  • Tulsi and Gary are competing in a basketball free throw competition. Tulsi’s ratio of free throws made to free throws missed is
    5·2 answers
  • Challenge question<br>please help<br>​
    13·1 answer
  • Anyone know how to do this??
    13·1 answer
  • The perimeter of a rectangle is 8x+10.if the length is 2x+8 what is the width?
    6·2 answers
  • Grace is comparing cell phone plans. A prepaid phone plan costs $0.20 per minute and has no monthly fee A
    9·2 answers
  • A concession stand uses 1/48 of a package of lemonade mix to make 1/6 gallons of lemonade.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!