Mathematics High School

How can I solve this with substitution with steps.
y=-6x-16
-2x+4y=-2

Answers

Answer 1

Answer:

(-31/13, -22/13)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Equality Properties

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

Algebra I

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

Step-by-step explanation:

Step 1: Define Systems

y = -6x - 16

-2x + 4y = -2

Step 2: Solve for x

Substitution

Substitute in y:                                                                                                -2x + 4(-6x - 16) = -2Distribute 4:                                                                                                    -2x - 24x - 64 = -2Combine like terms:                                                                                       -26x - 64 = -2[Addition Property of Equality] Add 64 on both sides:                                -26x = 62[Division Property of Equality] Divide -26 on both sides:                            x = -31/13

Step 3: Solve for y

Define original equation:                                                                               y = -6x - 16Substitute in x:                                                                                                y = -6(-31/13) - 16Multiply:                                                                                                           y = 186/13 - 16Subtract:                                                                                                          y = -22/13

Related Questions

Amy sells tote bags at a craft fair for a day. She pays $50 to rent a booth. The materials and labor cost on each tote bag is $3.50. Her expenses for the day depend on how many tote bags she sells. Write a linear function rule and identify the initial value and rate of change.​

Answers

Answer:

Let x= number of totebags sold

Cost=C(x)=50+3.5x

find the equation of the parabola given the following information:
focus: (3,4)
directrix: y=1​

Answers

Answer:

basically y=mx+b so it's y=1(3)+4

Round 39.472 to the nearest tenth​

Answers

The answer is 39.470 because 39.472 is far from 39.450 and it’s 2 numbers passed 39.470.

You estimate there to be 597 students in the school. There are actually 624 students in the school. What is the percent error?

Answers

i’d say you would subtract the numbers and get 27, but i’m not sure.

What is the measure of DBE?
A. 1200
B. 60°
C. 1800
D. 140°
E. 1000

Answers

Answer: I am pretty sure the answer is A, 120.

Step-by-step explanation:

PLEaSe HelP mE!

Cristiano Ronaldo now has 765 goals in his soccer career, 8 more goals than Pele. Which inequality would represent Pele's total goals when solving for x?

Answers

Answer:95.62

Step-by-step explanation:

x+8<765 I'm sure I'm notnpositivr

Bobby has $125 to spend. Used video games
are $15.50 each. Write an equation Bobby
could use to find out how many games he can
afford to buy? Use the variable x

Answers

Answer:

he can buy 8 video games

Step-by-step explanation:

125/15.50=8.06

hope this helps

pl make me brainliest

What are the coordinates of point R on the graph? Choose numbers to move to the lines to answer the question

Answers

Answer:

(0, 5)

Step-by-step explanation:

x = 0

y = 5

Madison is going to hike to the point (4,4) on the coordinate grid, which is the top of the

mountain shown.

7

6

5

2

0

1 2 3 4 5 6 7 8

What is the approximate total distance Madison travels while she moves up the mountain?

o

16

o

5.66

32

8.34

Answers

Answer:1212321312Step-by-step explanation:

2131313

Which is not equivalent to the equation P=2L+2W

Answers

Answer:

Where are the answer choices

Step-by-step explanation:

CAN YOU HELP ME PLSSSSSSSSSSSSSSSSSSSSS

Answers

Answer: p + 8

Step-by-step explanation:4+ (p +7) - 3

You do 4+7-3=8+p

Suzanne finances $315,000 with a 15/4 balloon mortgage at 3.75%, How much will she pay for principal and interest over the life of the loan?

$358,189.67

$357,416.36

$355,775,49

S356,638.32

Answers

Answer:

Step-by-step explanation:

Given that :

can someone help me with this i'm really confused heh... i'll give you a 5 star rating and brainliest answer!​

Answers

1. m= 4/9
2. m=4
3. m=-11
4. m=1/2

Dana and Abby both visited their grandparents this week,
-Dana visits her grandparents every 4 weeks.
-Abby visits her grandparents every 6 weeks.
What is the fewest number of weeks that will pass before both girls visit their grandparents again in the same week?
**I will Mark BrainIest- I only have 6 minutes left please help!!**

Answers

Answer:

10 i think because I added them i don't know though I hope it work sorry

need help asap give brainliest

Answers

Answer:

its b

Step-by-step explanation:

18 times 20 = 360 and  subtract 6 = 354.

how do i solve 6x+2y= 8

Answers

Answer:

The correct answer is,

for X:

[tex]x = \frac{4 - y}{3} [/tex]

for y:

[tex]y = 4 - 3x[/tex]

what is the measure of the missing angle ​

Answers

Answer:

82.1

Step-by-step explanation:

a triangle will always be 180° so you add the numbers you have already and subtract them from the total

41.2 + 56.7 =97.9

180-97.9= 82.1

have many people out there watch ph everyday like my brother

Answers

Answer:

booanana

Step-by-step explanation:beep boop

Answer:

my sister do the same lol

Step-by-step explanation:

please help i’ll give you and thanks and brainliest

Answers

Answer:

105

160

150

Step-by-step explanation:

This is just simple subtraction.

180-75=105

180-20=160

180-30=150

-4 + 8m + 9 - 3m help plssd

Answers

Answer:

5m + 5

Step-by-step explanation:

Combine like terms (terms with like & the same amount of the variable).

Set the equation:

(8m - 3m) + (9 - 4)

Simplify by combining like terms:

(8m - 3m)  = 5m

(9 - 4) = 5

5m + 5 is your answer.

~

Answer:

5m+5

Step-by-step explanation:

Describe how to round 3.897 to the nearest tenth

Answers

Answer:

To round 3.897 to the nearest tenth consider the hundredths’ value of 3.897, which is 9 and equal or more than 5. Therefore, the tenths value of 3.897 increases by 1 to 9.

3.897 rounded to the nearest tenth = 3.9

Mary ans will rent a tandem bike for 10$/hr. which value is the dependent variable.which is the independent variable. write an equation to represent the relationship between the number of hours,h,and the total cost,c.​

Answers

how many hours is the independent variable. 10h=c

y=x2-4

what is the answer?​

Answers

Answer:

x=√y+4 or x=−√y+4

Step-by-step explanation:

Step 1: Add 4 to both sides.

x2−4+4=y+4

x2=y+4

Step 2: Take square root.

x=√y+4 or x=−√y+4

What is the simple interst on $32,000 at 7% interest for 6 months

Answers

Answer:

1120$

Step-by-step explanation:

Total Intrest/By 7%

Answer:

$1,120 hope this helps!

Step-by-step explanation:

HELP ME ASAP


Lucy is baking a cake. The recipe requires 6 cups of flour and 8 cups of sugar. Which
ratio of cups of flour to cups of sugar can be used to make more than

Answers

B:

Step-by-step explanation

The expression 3(-2m + 5) - 6(-4m - 2) can be written in the form am + b.


What is the value of a + b? Plzz I need help

Answers

Answer:

5

Step-by-step explanation:

The computation is shown below:

Given that

3(-2m + 5) - 6(-4m - 2)

-6m + 15 + 24m + 12

18m + 27

Divided by 9

2m + 3

Here a = 2

And, b = 3

So, a + b = 2 + 3 = 5

Complete the following
a)
3/5 = ./20
b)
./6=25/30

Answers

Answer:

a)12/20

because 5 × 4 = 20 so, 3 also needs to multiply by 4

b)5/6

because 30 ÷ 6 = 5, and 6 × 5 = 30,so, 25 needs to ÷ with 5

A) 12/20
B) 5/6
Need to multiply the numerator by the same multiplication as the denominator

What is m<1?
Show work you don’t have to but if you want to you can?

Answers

Answer:

m<1=88

Step-by-step explanation:

The two inside angles add up to the outside angle, so 44+44=88

The answer would be m<1=88

1) 45 +
103
What would this equal

Answers

Answer:

148

Step-by-step explanation:

103+45=148

The interior dimensions of Sals refrigerator are 5 ft by 2 1/2 Ft by 2 ft. Find the capacity (Volume) of the refrigerator in cubic feet.​

Answers

Answer:

I think its 5 and 4 are the answer

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