Mathematics College

Solve the system of equations by using substitution or elimination. Show work to support your answer by typing in the box or using Scratchpad.
y = x + 2
y = 2x + 3

Solve The System Of Equations By Using Substitution Or Elimination. Show Work To Support Your Answer

Answers

Answer 1
Jaksndhsjskdjdbdndndjdjdjxjxj

Related Questions

14) Find the slope of the line that goes through the points (2,-5) and (3,-2).

Answers

Answer:

3

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-2-(-5))/(3-2)

m=(-2+5)/1

m=3/1

m=3

WILL MAKE BRAINLIEST! ANSWER AND ILY

what are the slopes of each line?

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Answer:

Top left is A

Top right is B

Bottom left is D

Bottom right is A

Step-by-step explanation:

Answers:
7.) A. Undefined
8.) B. 0
9.) D. -1/2
10.) A. -2/5

Find the area of this trapezoid

Answers

Answer:

a= 1024

Step-by-step explanation:

What is the relationship between the two expressions: 1/2 +3/4 and 10(1/2 + 3/4)

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9514 1404 393

Answer:

  the latter is 10 times the former

Step-by-step explanation:

The latter expression is the same as the former expression, but with a factor of 10 multiplying it. The second expression is 10 times the first.

Estimate 98.7 / 10.1 = ? (Show work)

Answers

Answer:

10

Step-by-step explanation:

Round both numbers to the nearest tens place.

98.7 rounds up to 100

10.1 rounds down to 10

100/10=10

Consider the diagram. What is the value of n?

Answers

Answer:

BRAINLIEST??!!

Step-by-step explanation:

Answer: n=46

Step-by-step explanation: Both equations add up to 180 degrees, do inverse operations until you only have n on one side.

PLEASE HELP ME OVER HERE

Answers

Answer:

Ummm what am i helping you with? You did not say anything, so i can't help you

Step-by-step explanation:

The proportion is the number of students in total/the amount of students who voted lasagna, you add all the votes together to get how many students there are in total (10+6+4=20) and 6 students voted for lasagna so the proportion would be 6/20 then you simplify it to 3/10 so the proportion of the students who like lasagna as their favorite pasta dish is 3/10

someone help me with math :):

Which of the following is not an integer?

1. 0
2. 1\2
3. 9
4. -13

what number? 1,2,3, or 4?

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the answer is 1/2.

Only whole numbers can be integers for future reference :)

Please help on this question

Answers

The perimeter would be 48 feet

How would you explain 0 (prime and composite wise)?

Answers

Answer: 0 = NOTHING

Step-by-step explanation:

WILL GIVE BRAILIEST FOR ANYONE WHO ANSWERS!
No fake answers and no critisizing

Answers

Answer:

Step-by-step explanation:

c

Answer:

item c is the answer

A 12-sided die is rolled. The set of equally likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12). Find the probability of rolling a number greater than 12.
The probability of rolling a number greater than 12 is
(Type an integer or a simplified fraction.)

Answers

Answer:

[tex]P(x>12) = 0[/tex]

Step-by-step explanation:

Given

[tex]x = \{1,2,3,4,5,6,7,8,9,10,11,12\}[/tex] --- outcomes

[tex]n(x) = 12[/tex] -- sample size

Required

[tex]P(x > 12)[/tex]

This is calculated as:

[tex]P(x > 12) = \frac{n(x > 12)}{n(x)}[/tex]

[tex]n(x>12) = 0[/tex] because none of the outcomes is greater than 12:

So:

[tex]P(x > 12) =\frac{0}{12}[/tex]

[tex]P(x>12) = 0[/tex]

Jenny is 9 years younger than Sammie. Five years ago, Sammie was four times older than Jenny. How old is each now?

Answers

Answer:

Jenny's is 8 now and Sammie is 17.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

Jenny's age is x.

Sammie's age is y.

Jenny is 9 years younger than Sammie.

This means that:

[tex]x = y - 9[/tex]

Five years ago, Sammie was four times older than Jenny.

This means that:

[tex]y - 5 = 4(x - 5)[/tex]

Since [tex]x = y - 9[/tex]

[tex]y - 5 = 4(y - 9 - 5)[/tex]

[tex]y - 5 = 4(y - 14)[/tex]

[tex]y - 5 = 4y - 56[/tex]

[tex]3y = 51[/tex]

[tex]y = \frac{51}{3}[/tex]

[tex]y = 17[/tex]

[tex]x = y - 9 = 17 - 9 = 8[/tex]

Jenny's is 8 now and Sammie is 17.

Sally is making 15 individual blueberry cheesecakes. How many pounds of blueberries will be in each cheesecake if 5 1/4 pounds of blueberries are divided equally among them?
​

Answers

Answer:

0.35 pounds in each cheesecake

Step-by-step explanation:

Number of individual blueberry cheesecakes = 15

Pounds of blueberries = 5 1/4 pounds

How many pounds of blueberries will be in each cheesecake if 5 1/4 pounds of blueberries are divided equally among them?

= 5 1/4 ÷ 15

= 21/4 ÷ 15

= 21/4 × 1/15

= (21*1)/(4*15)

= 21/60 pounds

Equivalent to 0.35 pounds in each cheesecake

Find the area of the regular polygon

Answers

Answer:

12

Step-by-step explanation:

There are 6 sides of the polygon, therefore since each corner is "2m", 2 x 6 = 12 making it the whole area.

*12 is basically the same as 360 since it's a polygon*

Which number line represents the solution of 5X < 30

Answers

Answer:

Step-by-step explanation:

Answer:

BRO, where are the number lines, can't help you if you dont put the number lines

If x = 0, what is f(x)?

Answers

12. hope that helps you with your homework

Sally has 15 quarts of milk. One quart is equal to 1/4 of a gallon. How many gallons of milk does Sally have?

Answers

Answer:

3.75 or 3 and 3/4

Step-by-step explanation:

you do 15/4

what is the next number in sequence -2, 10 -50, 250

Answers

Answer:

2×5=10

10×5=50

50×5=250

250×5=1250

your next Number = -1250

hope It helps

Answer:

This is your answer ☺️☺️☺️. If I'm right so,

Please mark me as brainliest. thanks!!!

the sides of a right triangle are 3,4 and 5 the tangent of angle A is

Answers

Answer:

?

Step-by-step explanation:

I got 30 will someone double check me please.

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That’s the correct answer

Answer:

yeah its 30

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Geometry Need Help. I will give brainliest

Answers

Answer:

9

Step-by-step explanation:

Where is 5/4 on a number line

Answers

Answer:

1/4 of a space after 1.

Hope that helps!

Step-by-step explanation:

1/4 or 0.25 spaces after 1

2.6 - c/0.2 = -15.9 find what c is

Answers

Answer:

3.7

Step-by-step explanation:

c/0.2=2.6+15.9

c=(2.6+15.9)0.2

If 4x + b = 12, then x is equal to:

Answers

Answer:

4x + 12 = 24

Subtract 12 to both sides

4x + 12 - 12 = 24 - 12

4x = 12

Divide 4 to both sides

4x ÷ 4 = 12 ÷ 4

x = 3

Step-by-step explanation:

Solve the system using elimination. 4y+x= -17 -2y+2x =16

Answers

Answer:

(3, -5)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Distributive Property

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Coordinates (x, y)Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

4y + x = -17

-2y + 2x = 16

Step 2: Rewrite Systems

-2y + 2x = 16

[Multiplication Property of Equality] Multiply 2 to both sides:                       2(-2y + 2x) = 32[Distributive Property] Distribute 2:                                                                 -4y + 4x = 32

Step 3: Redefine Systems

4y + x = -17

-4y + 4x = 32

Step 4: Solve for x

Elimination

Combine equations:                                                                                         5x = 15[Division Property of Equality] Divide 5 on both sides:                                  x = 3

Step 5: Solve for y

Substitute in x [Original Equation]:                                                                  4y + 3 = -17[Subtraction Property of Equality] Subtract 3 on both sides:                        4y = -20[Division Property of Equality] Divide 4 on both sides:                                  y = -5

Answer:

Step-by-step explanation:

Let's solve your system by elimination.

4y+x=−17;−2y+2x=16

Multiply the first equation by -2,and multiply the second equation by 1.

−2(4y+x=−17)

1(−2y+2x=16)

Becomes:

−2x−8y=34

2x−2y=16

Add these equations to eliminate x:

−10y=50

Then solve −10y= 50 for y:

−10y=50

−10y /−10  =  50/  −10 (Divide both sides by -10)

y = −5

Now that we've found y let's plug it back in to solve for x.

Write down an original equation:

4y + x = −17

Substitute −5 for y in 4y+x=−17:

(4)(−5)+x=−17

x−20=−17(Simplify both sides of the equation)

x−20+20=−17+20(Add 20 to both sides)

x=3

Answer:

x=3 and y=−5

HOPE IT WILL HELP :)

please help!! 14 points!!!

Answers

Decimal equal 0.28 percent equal 28%

which one is greater/less than?

-25% or 25%

Answers

Answer:

25% is greater then -25.

Step-by-step explanation:

-25 is in the negiatives, and is to the left of 0. Anything to the left of 0 will be less then anything on the right of 0. :D

-25% will always be less than 25% because a negative number, being less than 0, will always be less than a positive number, being greater than 0.

Thus, -25% is less than 25% or 25% is greater than -25%

Justine took samples of the numbers of points scored by two football teams during their games. The data for the samples are shown below.
Cougars: 13, 21, 3, 9, 7, 10, 28, 21
Hawks: 28, 10, 16, 17, 28, 20, 14, 35
How much greater is the mean number of points scored by the Hawks than the mean number of points scored by the Cougars?

Answers

Cougars mean=14
Hawks mean=21
Hawks have a greater average the average is greater by 7 points

Please help ASAP
I’ll mark Brainliest
What’s the total and lateral surface area for the figure?

Answers

Answer:

The total is 20 and the lateral surface is 1008 I think

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