Mathematics College

Solve using substitution.
- x - y = -1
X = 2

Answers

Answer 1
- 2 - y = -1
Add 2
-y = 1
Y = -1
Answer 2

Answer:

x = 2

y = -1

Step-by-step explanation:

-(2) - y = -1

add 2

-y = 1

divide by -1

y = -1

Related Questions

Sally bought 3 packs of strawberries for $7.65. What is the unit price? (price per ONE pack)
A. $2.55
B.$2.05
C. $1.55
D. $2.75

Answers

Answer:

A

Step-by-step explanation:

you just need to divide $7.65 by 3

Answer: The answer is A

Each box cost $2.55

Step-by-step explanation:

7.65 divided by 3 = to 2.55

What’s 1/4 +2/3 or 3/4+2/3

Answers

Answer:

1/4+2/3=11/12

3/4+2/3=17/12

Step-by-step explanation:

If y − 4 = 2x, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs? (5 points)

{(2, 1), (4, 2), (6, 3)}
{(1, 2), (2, 4), (3, 6)}
{(4, 0), (6, 1), (8, 2)}
{(0, 4), (1, 6), (2, 8)}

Answers

Answer:

Step-by-step explanation:

hmmmm

Answer:

It's D (the last one)!!

need answer thanks!!!!!!!

Answers

Step-by-step explanation:

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5 kilometers between two locations, how many centimeters on the map is it?

Answers

Answer:

5 Km = 5000 meters, so 5000m/ 200m (scale factor)= 25 cm

Step-by-step explanation:

a linear function contains the following points (0,-1) (3,8)

Answers

The answer is d.
to find the slope you can do y2-y1/x2-x1
8-(-1)/3-0= 9/3 or 3
you can then put one of the points into the slope intercept form y=mx+b or 8=3(3)+b
you get 8=9+b. you subtract 9 from both sides to get -1=b. y intercept means that the point is (0,-1)

Please I need help!!! The Hiking Club plans to go camping in a State park where the probability of rain on
any given day is 0.18. What is the probability that it will rain on at least four of the
five days they are there? Round your answer to the nearest thousandth.

Answers

Answer:

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Answer:

The sum:0.0049 =0.004. so the answer is 0.004

if anyone knows the answer please help

Answers

Answer: B

Step-by-step explanation:

1/9(3)^x

(3)^(5) = 243

243(1/9) = 27

Hope this helps :)

1. If 12 kg of sugar cost $ 250, calculate the cost of 20 kg of sugar.

Answers

Answer:  416.7

250/12 = 20.8

20.8 x 20 = 416.7

a box contains 7 black pencils and 28 blue onew what is the ratio between the black and blue pens

Answers

Answer:

1 : 4

Step-by-step explanation:

7 black : 28 blue = 7/28 ---> reduces to 1/4 ---> 1 : 4

The ratio between the black and blue pens  [tex]\dfrac{1}{4}[/tex] or 0.25 or 1:4.

Given to us,

Number of black pens box contains = 7,

Number of blue pens box contains = 28,

[tex]\bold{Ratio\ between\ the\ black\ and\ blue\ pens = \dfrac{Number\ of\ black\ pens\ box\ contains}{Number\ of\ blue\ pens\ box\ contain} }[/tex]

Putting in the values we get,

The ratio between the black and blue pens  [tex]=\dfrac{7}{28} = \dfrac{1}{4} =0.25[/tex],

Hence, the ratio between the black and blue pens  [tex]\dfrac{1}{4}[/tex] or 0.25 or 1:4.

To know more visit:

https://brainly.com/question/1504221

The intercepts 9x^2+4y^2=36

Answers

Answer:

Step-by-step explanation:

can i fet a kiss x9

These points are linear. Find the Slope.

Answers

Answer:

the slope is 1

Step-by-step explanation:

if your x goes up by one as your y goes up by one, the slope will always be one.

Answer: slope = 1

Explanation:

m = (y1 - y)/(x1 - x)

Where:
m is the slope
y1 = -3, y = -2
x1 = -3, y = -2

=> m = (-3 -(-2))/(-3 -(-2))
=> m = (-3 + 2)/(-3 + 2)
=> m = -1/-1 = 1

Therefore the slope is 1

Please help fast, thanks.

Answers

Answer:

b > 100

Step-by-step explanation:

24.39 is 9% of what number..........................

Answers

Answer:

271

9 percent (calculated percentage %) of what number equals 24.39? Answer: 271.

Step-by-step explanation:

Answer:

2.19 I think. Hopefully this helps. You first turn 9% into a decimal, which is 0.09. Then multiply by 24.39, which is 2.19. You can also use the friendly percentage, 10%.

I don't know if this is correct because I'm not too sure, but I hope this helps.

The equation y = 3x + 7 is written in slope-intercept form.
O True
False

Answers

Answer:

True

Step-by-step explanation:

The slope intercept form of an equation is

y = mx+b where m is the slope and b is the y intercept

y = 3x+7 where the slope is 3 and the y intercept is 7

This is in slope intercept form

True is correct answer

Help meeee anyyyonee

Answers

Answer: 8,16

Step-by-step explanation:

Plz Help!!!
Will Give Brainliest to the First Person that answers!!!

Answers

Answer:

20

Step-by-step explanation:

Q5)
DES
ABCD is a trapezium. Lines AB and DC are parallel to each other.
GRADI
B
Find the values of x and y.
5x
(4y - 12º)
(4x -- 9°)
(2y
D
С
Diagram not accurately drawn

Answers

5x + 4 - 12 + 4x - 9 + 2y=360

The perimeter of parallelogram ABCD is 46 inches. What
is DA?

Answers

Answer:

B. 4 inches

Step-by-step explanation:

I got 100% on the quiz on Edg 2020

Answer:

4 inch

Step-by-step explanation:




5 to the negative 3rd power ​

Answers

Answer:

1/125

Step-by-step explanation:

[tex](5)^{-3}\\\\=\frac{1}{5^3}\\\\=\frac{1}{125}[/tex]

in the equation 80 multiplied by 10 = 8, the number 80 is the

Answers

Answer:

product of 10 and 8

Step-by-step explanation:

8 is the quotient of 80 and 10 (80/10=8)

If LM = MP, then M must be the midpoint of LP? True or False? Im so confused on this!

Answers

Answer:

true

Step-by-step explanation:

if you have a line LP and midpoint M means M divides LP in to two equal parts ie LM and MP

Plz help with these 2 questions and thx !

Answers

Answer:

The first is 18.

The second is less than (<).

Step-by-step explanation:

Hope this helps <3

Answer:

1. 18

2. C

Step-by-step explanation:

1. 7/42=1/6 3•6=18

2. 3/7 is greater than 3/8

Which of the following statements about photocopier A1 is correct compared to the other photocopiers?

Answers

Answer:

Option 2

Step-by-step explanation:

Number of breakdowns of the photocopiers in year 2011,

A1 = 15

A2 = 21

B1 = 34

B2 = 32

B3 = 23

Option (1)

A1 had just under a half the number of breakdowns compared to photocopier B3.

Half of B3 = 12

And A1 = 15

Therefore, A1 > B3

So the statement is False.

Option (2)

A1 had just under 50% of the breakdowns compared to photocopier B2

50% of the breakdowns of B2 = 16

A1 = 15

So, A1 < 50% of B2

Statement (2) is True.

Option (3)

A1 had more than 25 extra breakdowns compared to B1.

A1= 15

B1 = 34

A1 < B1

Therefore, statement is False.

Option (4)

A1 had 6% less breakdowns than photocopier A2.

A1 = 15

A2 = 21

A2 - A1 = 21 - 15 = 6

Percentage less breakdowns = [tex]\frac{6}{21}\times 100[/tex] = 28.6%

So this Option is False.

Therefore, Option (2) is the correct option.

At a sale, dresses were sold for $22 each. This price was 55% of a dress's original price. How much did a dress originally cost? Answer: Submit Answer attempt 1 out o Privacy Policy Terms of Service acer​

Answers

Answer:

$9.90

Step-by-step explanation:

Walt Disney creates Mickey Mouse. convert to passive voice ​

Answers

Answer:

Mickey mouse was created by Walt Disney.

Step-by-step explanation:

Active voice = Walt Disney creates Mickey Mouse.  (subject, verb, object)

passive voice = Mickey mouse was created by Walt Disney. (object, verb, subject).

USA test prep please help

Answers

Answer: B

Step-by-step explanation: "Product" is the answer of a multiplication problem, "Reduced by" is to  make smaller or less in amount, degree, or size.

please need help on this question

Answers

Answer:

..

Step-by-step explanation:

Can someone help me find the value of X please?

Answers

Answer:

x = -4

Step-by-step explanation:

A circle is 360 degrees.

Anyway, first add 85 + 35 + 115 and you will get 235.

Now subtract 235 from 360.

360 - 235 = 125 degrees

Now to find x, do

-32x - 3 = 125

-32x = 128

-32x/-32 = 128/-32

x = -4

Hope it helped! My answer is expert verified.

...............................

Answers

Answer:

What dose this mean

Step-by-step explanation:

Thx for the free points

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