Mathematics College

Solve the following system of equations:
2x - 3y = -1
y = x - 1

A. (4, 3) B. (-2, -3)
C. (-4, -5) D. (2, 1)

Answers

Answer 1

Answer:

A.(4,3)

Step-by-step explanation:

hope this help:)

Answer 2

Answer: A（4，3）

2x-3(x-1)=-1

x=4

y=4-1

y=3

Related Questions

How do i write the quotient as a mixed number?

Answers

Answer:

divide the numerator by the denomantor

Step-by-step explanation:

A fraction in which the numerator is smaller than the denominator, like 1/3 or 2/5 is called a proper fraction. A fraction in which the numerator is larger than or equal to the denominator, like 5/2, 17/3, or 6/6 is called an improper fraction. (To put it another way, a fraction with a value less than 1 is a proper fraction. A fraction with a value greater than or equal to 1 is an improper fraction.)

As we have shown above, mixed numbers can be written as improper fractions. Similarly, improper fractions can be written as mixed numbers.

16. Jim's sub was cut into 16 pieces. How many pieces were eaten?
12 pieces
4 pieces
8 pieces
3 pieces

Answers

Pikuai answers~

========================

(You didn't attach an important part of the question which I assume was a fraction so I'm going based off nothing. Trying my best to help though)

Jim ate 8 pieces of his sub!

============================

Hope this helps! Have an amazing day!~

You randomly choose one of the tiles shown below. Find the favorable outcomes of the Event.

Answers

Answer: my ancer is 45.67

Step-by-step explanation: you wold fine all the tiles on the flor.

What percent of 24 is
18?

Answers

The answer would be 75%

The value 18 is 75% of the number 24.

What is the percentage?

The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that there are two numbers 24 and 18. The percentage will be calculated as,

Percent = ( 18 / 24) x 100

Percent = 0.75 x 100

Percent = 75%

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Brittany is saving up to purchase a new Xbox One S ANSWER FOR BRANLIEST Two Controller Bundle (1TB). She has already saved $425 from her part-time lawn mowing job. The Xbox Bundle she wants to buy will cost $600. If Brittany earns $25 for each lawn she mows, how many more lawns will she need to mow in order to have enough to purchase the Xbox?

Answers

Answer:

She will have to mow 7 lawns

Step-by-step explanation:

You do 425 -625 too see how much more money she needs

you get 175 . then each lawn is 25 so 175 divided by 25 is 7 . so she has mow 7 lawns

write an expression y+3y-2y=​

Answers

Answer:

3y=2y

Step-by-step explanation:

Im not sure if this is the answer your looking for but I hope this helped. I tried tho lol :)

Solution:2y
Explanation: y+3y-2y=4y-2y=2y

5y-2x when y=10 and x=3

Answers

Answer:

44

Step-by-step explanation:

So, first off substitute the letters for their given value

5(10)-2(3)

now using the PEMDAS operations,

we multiply,

50-6

then subtract

44

and there is your answer!

Answer:

46

Step-by-step explanation:

5y-25x

5y=50

2x=6

50-6

=46

7w -17=46 need help thanks

Answers

Answer:

w=9

Step-by-step explanation:

7w -17=46

Add 17 to each side

7w -17+17=46 +17

7w = 63

Divide each side by 7

7w/7 = 63/7

w=9

Answer:

W=9

Step-by-step explanation:

46+17=63

63=7w

63/7=9

Pls help!!! Will mark Brainiest!

Factor each expression using the GCF. Check your work using the Distributive Property.
9. 3x + 12
10. 6x - 30
11. 20x - 16
12.-50x + 80
13. 77 + 22x
14. 21x - 14

Answers

Answer:

9.3(x+4)

10.6(x-5)

11.4(5x-4)

12.-10(5x-8)

13.11(7+2x)

14.7(3x-2)

Step-by-step explanation:

A power system will collapse if a ground fault occurs on any two of lines A, B, and C simultaneously. Assume that ground faults on lines A, B, and C are independent and have identical probability of 0.01. Hint: parts (a) and (b), use Bernoulli Trials; part (c), use Bayes Rule. a) What is the probability that the system will collapse

Answers

Answer:

0.000298 = 0.0298% probability that the system will collapse

Step-by-step explanation:

Number of possible ways the system can fail:

2 lines from a set of 3 fail, or all three fail.

Two from a set of 3:

Can be A and B, A and C, or B and C. Three possible outcomes then.

The probability of each is:

0.01*0.01*0.99

Two failling, each with 0.01 probability, and 1 working, with 0.99 probability.

All three:

Each with 0.01 probability.

a) What is the probability that the system will collapse

Both cases, so

[tex]p = 3*(0.01)^2*0.99 + (0.01)^3 = 0.000298[/tex]

0.000298 = 0.0298% probability that the system will collapse

EASY
? I think it is

Answers

Answer:

C.

Step-by-step explanation:

Choose Yes or No to tell if the number 30 will make each equation true.

270 ÷ □ = 9

Choose...



1,200 ÷ □ = 400

Choose...



9,000 ÷ □ = 300

Choose...



600 ÷ □ = 20

Choose...

(will mark brainiest and 5 points pls answer its for a test due in 20 min).

Answers

Answer:

1. Yes

2. No

3. yes

4. yes

270 ➗ 30 = 9 } True

1,200 ➗ 30 = 40 } False

9,000 ➗ 30 = 300 } False

600 ➗ 30 = 20 } False

Hope This Helps✨

20 points Which of the following is NOT an advantage of using wind turbines to generate wind power? Wind turbines are not suitable for all geographical locations. O Wind turbines are affordable. Wind turbines do not emit carbon dioxide and do not require sunshine. O Wind turbines cause little disruption of ecosystems.​

Answers

Wind turbines cause a lot of dictatorship

The option that does not describe an advantage of wind power is Wind turbines cause little disruption of ecosystems.​

What is Wind power?

Wind power is defined as the process by which the wind is utilized to generate mechanical power or electricity.

Wind power is the most sustainable, and renewable energy source which has a much smaller harmful influence on the environment as compared to the burning of fuels.

This is an environmentally friendly mechanism for synthesizing energy and electricity.

Wind turbines are not placed in large bodies of water that turbines are on land for the production of electricity.

Therefore, the option is Wind turbines cause little disruption of ecosystems.​

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If I have 110 peanut butter sandwiches, 80 turkey sandwiches, 40 excell sandwiches and 70 ham and cheese sandwiches. how many sandwiches are likely to be ham and cheese sandwiches.

Answers

Answer:

70 ham and cheese sandwhiches

nice try.

Answer:

70

Step-by-step explanation:

Discuss where you see math in the real world, including mathematical vocabulary.​

Answers

Answer:

you could use it in your job, you use math to d taxes.

Step-by-step explanation:

The moon is about 382,500 km away from earth. This distance actually varies by about 22,500 km. What are the maximum and minimum distances to the moon?

Answers

Answer:

225,623 miles (363,104 kilometers).

Step-by-step explanation:

I need help with this question?​

Answers

Answer:

Not sure but try

Step-by-step explanation:

1, 6 < 2x

2, c = b2

3, a + g / 5

4, (c^4)7u

5, y > 4(9)

6, e < 10 + p

Alondra says that (12 + 31) × 5 is equivalent to 12 + 31 × 5 because of the associative property.
Describe the associative property in words.

Answers

Answer:

Step-by-step explanation:

The associative property states that you can add or multiply regardless of how the numbers are grouped.

I REALLY NEED HELP WITH THIS!!!! | I WOULD MARK BRIANLIEST

Answers

Answer:

104 degrees.

Step-by-step explanation:

angle 5 is equivalent to angle 3. and a straight line is 180 degrees. So you have to subtract 76 form 180. Hope this helped!

divide 49 ÷ 8 = and show your work

Answers

Answer:

6

Step-by-step explanation:

Place this digit in the quotient on top of the division symbol. Multiply the newest quotient digit (6) by the divisor 8 . Subtract 48 from 48 . The result of division of 48÷8 48 ÷ 8 is 6

The required, 49 divided by 8 gives 6 as the quotient and 1 as the remainder.

To divide 49 by 8, you can use long division to find the quotient.
Determine how many times the divisor (8) can fit into the new number (49). In this case, 8 goes into 49 six times. Subtract the result (48) from the number you brought down (49). 49 - 48 = 1. Write the result (1) below the line.  

    6
 _______

8 | 49

   -  48   (8 times 6)

   ______

        1   (Remaining 1 after subtracting)

Therefore, 49 divided by 8 gives 6 as the quotient and 1 as the remainder.

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24 students took in a class took an algebra test. If 18/students passed the test, what percent passed?

Answers

Answer:

75%

Step-by-step explanation:

18 divided by 24 equals 0.75 and then you multiply that by 100 and you get 75 so its 75%

A salesperson at a jewelry store earns 7% commission each week. Lat week, Heidi sold 450$ worth of jewelry. How much did she make in commission? How much did the jewelry store make from her

Answers

Step-by-step explanation:

$31.50 is how much she made

418.5 is how much the store made, but, that is the simple value, there could be more variables

simplify the ratio :
35 minutes to 45 seconds ​

Answers

Answer:

7:9

Step-by-step explanation:

Just divide 35 and 45 by 5.

Ms. Smith purchased ½ of a pound of grapes. She would like to make 1/12 of a pound portions for this week’s snacks. How many portions will she be able to make?

Answers

Answer:

There is no enough information to determine how many portions she will be able to make.

We need to know how many pounds of grapes will she needs to make a particular pounds portions for the snacks.

For example, if she needs 2 pounds of grapes to make 5 pounds portion for the snacks, and she purchase ½ pounds of grapes, we can determine how many pounds of portions for the snacks she will be able to make with this information.

Using a simple ratio

2:5 = ½:x

2/5 = ½/x

Multiplying both sides by x

(2/5)x = 1/2

Multiplying both sides by 5/2

x = (1/2)×(5/2)

x = 5/4

x = 1¼ pounds

Meaning she will be able to make 1¼ pounds of portion for snacks with ½ pounds of grapes.

Step-by-step explanation:

blank tens 15 ones = 6 tens 5 ones​

Answers

Step-by-step explanation:

_x_tens 5 ones=6tens 5 ones

5x=65

x=65/5

x=13

sorry i donot get answer at 15 ones.

A small pouch contains 8 black marbles, 5 white marbles and 12 red marbles. What is the parabolic of not drawing a red
A) 36%
B) 48%
C) 52%
D) 71%
PLEASE HELP GIVE BRAINLY

Answers

I believe the answer is 48%

what is 2 7/8 as a mixed number
i need the answer asap for a test!

Answers

Answer:

23/8

Step-by-step explanation:

Select all the expressions that are equal to the product of 18 and 6.

Answers

Answer: 108

Step-by-step explanation:

product means x 's so there for 18x6= 108

Find the measure of angle B

Answers

Answer should be 66.6°
Hope this helps

plsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss

Answers

the answer is 15....
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