Mathematics College

Solve the following system of equations.
2x+y = 3
x=2y – 1
x=
y=

Answers

Answer 1

Answer:

y=1    x=1

Step-by-step explanation:

2x + y = 3

x = 2y - 1  

.

It looks like I could substitute the x=2y-1. Into 2x+y=3

2(2y-1)+y=3

4y-2+y=3

5y=5

y=1

x=2(1)-1

x=1

Answer 2

Answer:

Y =1

X =1

Good luck!!

Related Questions

8/15 divided by ( -0.35) hurry pls it’s for a test

Answers

Answer:

-1.52380952381

Step-by-step explanation:

Answer:

-1.5238...

Step-by-step explanation:

I just did it on my calculator. Hope it helps!

50pounds to 35 pounds

Answers

Answer:

I am assuming you mean the difference, In that case it is 15 pounds.

50- 35= 15

Mr. Scott want to tip his taxicab driver 18%. If his commute costs $25, what is the tip?

Answers

Answer:

4.5$

Step-by-step explanation:

25 times .18 = 4.5$

What is the completely factored form of 5k^2 - 46k + 77?

Answers

Answer:

The completely factored form of 5k^2 - 46k + 77 is (−7) (5−11)

Step-by-step explanation:

May I have brainliest please? :)

Answer:

(k-7)(5k-11)

Step-by-step explanation:

The art teacher bought 6 boxes of colored pencils. Each box contains 12 colored pencils. She wants to give each of her 10 students as many colored pencils as possible and keep the rest. Based on this information, which statement is true

Answers

Answer:

60

Step-by-step explanation:

(6x12)-(6x2)

72-12

60

Answer:

I need the statement before I answer

Step-by-step explanation:

Estimate. Tell whether the estimate is greater than or less than the actual product
23
x 24
A. O 25 10 = 250; less than
B. O 25 15 = 375; greater than
C. O 20 20 = 400, less than
D. O 30 20 = 600; greater than

Answers

Answer:

don't know

Step-by-step explanation:

Find the area of a circle with diameter 14 cm use 3.14

Answers

Answer:

153.94

Step-by-step explanation:

The city of Joyville has 87,388 residents.​

Answers

Answer:

ok?

Step-by-step explanation:

To make orange fizz, Noah mixes 2 scoops of powder with 6 cups of water. Andre mixes 4 scoops of powder with 18 cups of water. Which mixture is more orangey flavored?

i need it ASAP PLEASE HELP ME WITH THIS PROBLEM!

Answers

AnswerThe tables are given below and

since,

so, Noah's mixture will taste more like orange, than Andre's mixture.

Step-by-step explanation:

To make orange fizz, Noah mixes 4 scoops of powder with 6 cups of water, Andre mixes 5 scoops of powder with 8 cups of water.

so, can construct the following tables -

A) table that shows different amounts of powder and water that taste the same as Noah's mixture :-

Serial no. Powder in scoops cups of water

1 8 12

2 12 18

3 16 24

4. 20 30

5. 24 36

B) table that shows different amounts of powder and water that taste the same as Andre 's mixture :-

Serial no. Powder in scoops cups of water

1 10 16

2 15 24

3 20 32

4. 25 40

5. 30 48

C) Since,

so, Noah's mixture wili taste more like orange, than Andre's mixture.

Step-by-step explanation:

Find an equation parallel to x = 0 and passing through (5. - 1).

Answers

Answer:

x=5

Both are vertical lines and parallel to each other.

I am a trapezium, identify my properties from the following:
a. my opposite sides are parallel // b. I am a quadrilateral // c. I have all the sides equal

Answers

a. my opposite sides are parallel

FALSE. Only the basis sides are parallel.

b. I am a quadrilateral

TRUE. A trapezium has 4 sides.

c. I have all the sides equal

FALSE. The trapezium is a special shape in that it does not, unlike the square or rectangle, have to have any equal side lengths.


the descriptive method:
{4, 8, 12, 16, 20)

Answers

Answer:

The set of the first five positive numbers multiples of 4.

Step-by-step explanation:

Which equations have a value less than 6,766?

A. one fourth x 6,766 = ________

B. 6 x 6,766 = ________

C. one half x 6,766 = ________

D. 1 x 6,766 = ________

A and C
D and B
A and B
C and D
please help giving brainlyest

Answers

A and C are the correct answers.

I hope this helps.

A and C I Think......

8
Mark is comparing prices of different brands before he goes shopping. Who has the best deal on ice cream?
Brand
Size & Price
Turkey Hill
$4.50 for 30 ounces
Breyers
$15.36 for 128 ounces
Ben & Jerrys $2.88 for 16 ounces
Answer:

Answers

Answer:

The best deal would be Breyers 15.36 for 128 ounces

Step-by-step explanation:

128/15.36 Is 8 an ounce.

However every other ice cream devided by he same amount of ounces is more that the price of breyers. So basically for bryers you get more for less!'

128/4.50= $28

128/2.88= $44

Answer:

Breyers

Step-by-step explanation:

$4.50/30 oz = .15

$15.36/128 oz = .12

$2.88/16 oz = .18

Write a linear equation for each table relating X and Y

Answers

Answer:

a. y = 2 + 2x

b. y = 20 - 4x

c. y = 2 + 1.5x

d. y = 20 - 3x

Step-by-step explanation:

I Hope That This Helps! :)

. Clementine and her family like to eat at
the local pizza buffet. The price per person
has increased from $8 to $11. By what
percent did the price per person increase?
A-27.2%
B-37.5%
C-72.7%
D-19%

Answers

Answer:

Step-by-step explanation:

B-37.5%

(11-8)/8=3/8=0.375=37.5%

Step by step is fhfhfhh111233

What is the slope of the line on the graph?

Answers

Answer:

-2/8 or  -1/8

Step-by-step explanation:

A thief steals an ATM card and must randomly guess the correct three-digit pin code from a 9-key keypad. Repetition of digits is allowed. What is the
probability of a correct guess on the first try?
The probability that the correct code is given on the first try is

Answers

1/9 * 1/9 * 1/9 = 0.00137

(-0.5x - 0.4) - (0.75x - 0.6)

Answers

Answer:

-1.25x + 0.2

Step-by-step explanation:

(-0.5x - 0.4) - (0.75x - 0.6) = -0.5x - 0.4 - 0.75x + 0.6

                                          = -0.5x - 0.75x - 0.4 + 0.6

                                          = -1.25x + 0.2

Colin gets pic 'n mix when at the cinema and makes his bag up with 3 types of sweet. He pick:
3 times as many cola bottles as smarties. He also picks twice as many smarties as
marshmallows. What proportion of the bag of sweets are cola bottles?
Give your answer in its simplest form.

Answers

Answer: 2/3

Explanation: Assume that the number of smarties he picked is c.

Now, we are given that:

1- He picked 3 times as many cola bottles as smarties. This means that:

Number of cola bottles he picked = 3s

2- He picked twice as many smarties as marshmallows. This means that:

number of marshmallows he picked = 0.5s

Now to get the proportion o f cola bottles, we will divide the number of cola bottles by the total number of sweets as follows:

proportion of cola bottles =  

Hope this helps :)

144:128 convert into simplest form

Answers

The answer is 9:8 or 9/8
9:8 would be the simplified ratio

In the year 2005, a person bought a new car for $27500. For each consecutive year after that, the value of the car depreciated by 12%. How much would the car be worth in the year 2008, to the nearest hundred dollars?

Answers

Answer:

Getting my point back lol

Step-by-step explanation:

Between 10 Pm and 7:36 am the water level in a swimming pool decreased by 12/25 in assuming that the water level at decreased at a constant rate how much did the water level drop each hour

Answers

Answer:

you divide and muliply til you have got to an hour and then qadd it all

Step-by-step explanation:

What decimal equivalent to 5/6

Answers

Answer:

0.83333333

Step-by-step explanation:

The 3 is repeating

Answer:

0.83333333...

Step-by-step explanation:

(i'll be giving brainliest on this one!! :) )

Solve seven times four and five eighths.

A) twenty eight and three eighths
B) twenty eight and five eighths
C) thirty two and three eighths
D) thirty two and five eighths


(Here is an image if needed :D) :

Answers

Answer:

Third option

Step-by-step explanation:

In order to find the answer to this question you must change the mixed number into a improper fraction and then multiply the numerators to the denominators.

[tex]7\times4\frac{5}{8}[/tex]

Remember that all numbers have a invisible one as the denominator:

[tex]7=\frac{7}{1}[/tex]

[tex]\frac{7}{1} \times4\frac{5}{8}[/tex]

Turn the mixed number into a improper fraction:

[tex]8\times4=32+5=37[/tex]

(Remember to keep the denominator the same)

[tex]=\frac{37}{8}[/tex]

Now multiply:

[tex]7\times37=259[/tex]

[tex]1\times8=8[/tex]

[tex]=\frac{259}{8}[/tex]

Turn the improper fraction into a mixed number:

[tex]\frac{259}{8} =32\frac{3}{8}[/tex]

[tex]=32\frac{3}{8}[/tex]

Hope this helps.

in point slope form: passes through (-2,-1), slope = 4?​

Answers

Answer:

y+1= 4(x+2)

You could also do: y - -1= 4(x- -2)  

They are the same so it shouldnt matter

Peter spent $54.90 on shirts, $64.95 on shoes, and $7.55 for a tie. Which is the most
accurate estimate of how much he spent?

Answers

Answer:

I'd say about 127.

Step-by-step explanation:

54.90 + 64.95 is probably about 120, and plus the 7.55 is about 127.

Are the 2 triangles congruent? If so, what postulate did you use?
+
++
O AAS
O ASA
SAS
SSS
OHL
Not congruent
Are the 2 triangles congruent? If so, what postulate did you use?"

Answers

Answer:

Step-by-step explanation:

4

y+6=2

Make sure all work is shown

Answers

Answer:

y=-4

Step-by-step explanation:

y+6=2

y=2-6

y=-4

Answer:

y = -4

Step-by-step explanation:

y + 6 = 2

  -6     -6

subtract 6 from both sides

y = -4

Wor At an assembly, 180 students sit in 9 equal rows. How many student n each row? ​

Answers

Answer: 20

Step-by-step explanation:

Divide the number of students by the number of rows,

180/9=20

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