Solve the system of equations by ELIMINATION.
Show the work that would correspond with the elimination method.
PLS HELP I ONLY HAVE 20 MINUTES

Answer:

-18, -22, -26, -30

Step-by-step explanation:

add negative 4 each time

Answer:

Area = 113.01 m²

Step-by-step explanation:

From the picture attached,

Area of the quadrilateral ABCD = Area of triangle ABC+ Area of triangle ACD

Construction to be done → Draw a perpendicular from a point A to the opposite side CD

Area of Δ ABC = [tex]\frac{1}{2}(AB)(BC)[/tex]

                         = [tex]\frac{1}{2}(12)(10)[/tex]

                         = 60 m²

Area of triangle ACD = [tex]\frac{1}{2}(AE)(CD)[/tex]

From ΔAEC,

sin(29°) = [tex]\frac{AE}{AC}[/tex]

AC = [tex]\sqrt{(12)^2+(10)^2}[/tex] [By Pythagoras theorem]

AC = [tex]\sqrt{244}[/tex]

AC = 15.62 m

Therefore, AE = 15.62sin(29)

                        = 7.57 m

Area of ΔACD = [tex]\frac{1}{2}(7.57)(14)[/tex]

                        = 53.01 m²                                

Area of ABCD = 60 + 53.01

                        = 113.01 m²            

Answer:

y = 2x + 2

Step-by-step explanation:

Add two to both sides.

Answer:

A & B

Step-by-step explanation:

TBH I was kind of getting that is was D, but follow your gut I just know its defiantly A

Answer:

a and b

Step-by-step explanation:

Answer: 3

Step-by-step explanation:

Step-by-step explanation:

The first important details are given at the start, where the beginning amount of snow is 12 inches. This is a positive number.

Then, the next sentences tell us that the snow melts at a pace of 2 inches for an x number of days.

This can be represented by -2x because the word "melts" indicates a negative value.

From this, the equation can be made :)

Answer: Volume = 103.823 cubic inches

Step-by-step explanation:

Volume= length x width x height

Volume = 4.7inxhes x 4.7inxhes x 4.7inches

Volume = 103.823 cubic inches

Answer:

S= 15W

Step-by-step explanation:

Given data

We are told that Amanda saves $15 per week for her summer vacation

Let her total savings be S

and the number of weeks be W

Hence the expression for her savings is

S= 15W

Answer:

7 hours

Step-by-step explanation:

We are given that

At sunset, the temperature=-5 degrees Fahrenheit

Each hour, temperature falling=2degrees Fahrenheit

We have to find time taken to reach the temperature -19° F.

Let x be the time time taken to reach the temperature -19° F

According to question

[tex]-5+x(-2)=-19[/tex]

Where we taking 2 negative because temperature decreases.

[tex]-5-2x=-19[/tex]

[tex]-5+19=2x[/tex]

[tex]14=2x[/tex]

[tex]x=\frac{14}{2}[/tex]

[tex]x=7[/tex]

Hence, it will take 7 hours for the  temperature to reach -19° F.

Answer:

m < -3 or m ≥ 1

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

(5a+9)4=116

20a+36=116

20a=116-36

20a/20=80/20

a=4

Answer:

520

Step-by-step explanation:

234=45%

26=5%

100/5=20

20X26=520

Answer:c520 is the answer your welcome! :)

Step-by-step explanation:

Answer:

y=5x-21

Step-by-step explanation:

Answer:

-12

Step-by-step explanation:

multiplication

Answer:

-12

Step-by-step explanation:

-4 x -1 x -3

4 x -3

=-12

Step-by-step explanation:

−4x+5−13x+39=180

Step 1: Simplify both sides of the equation.

−4x+5−13x+39=180

−4x+5+−13x+39=180

(−4x+−13x)+(5+39)=180(Combine Like Terms)

−17x+44=180

−17x+44=180

Step 2: Subtract 44 from both sides.

−17x+44−44=180−44

−17x=136

Step 3: Divide both sides by -17.−17x

−17

=

136

−17

x=−8

Answer:

x=−8

Answer:

Hi, person.

Step-by-step explanation:

Step-by-step explanation:

first criss cross

then minus by 1 over 4

OR

find lcm of 3 6 4 and after you get it write the number out side let # be the lcm and let me show you #(2,5)&#(_1) and solve it

Answer:

the answer should be 1,2,3,4 , the domain is always the x values .

Step-by-step explanation:

Answer:

y=-0.1+3

Step-by-step explanation:

Answer:

i pretty sure the missing number is 4

Step-by-step explanation:

Answer: In between 3 and 4

Step-by-step explanation:

Brainliest pllllzzzzz

Answer:

P=23.4

Step-by-step explanation:

so using the pytogoren theroum

c2-b2= a2

so a= 6.9

so P= 6.9+6.8+9.7=23.4

if my answer helped please mark as brainliest.

Answer:

13. 3x+10=5x-10

14. (I'm not sure how to set this one up, sowwy ;^;)

15. 5x+15=6x

16. x+10=4x-20

I'm pretty sure this is how to set it up

Answer:

3y^3-4xy+2y

y(3y²-4x+2)

Answer:

x= 6

Step-by-step explanation:

3x > x + 7

3(6) > 6 + 7

18 > 13

Hope this helps. Thank you !!

Answer:

it's 4 because if you multiply 3 and 4 it's 12. and 4 plus 7 is 11. making 4 the lowest

Answer:

The number of chairs

Step-by-step explanation:

The equation is 2z + 3

2 ( = multiply by)

z ( # of chairs)

+3 ( the 3 extra chairs in the back)

Answer:

The number of tables

Step-by-step explanation:

Sens there is twice as many chairs as tables, the number 2 represents the chairs. The 3 represents the 3 extra chairs in the back. so the only logical object to represent z is the number of tables.

Answer:

This is a proportion

Step-by-step explanation:

Cross multiply:

12 * 20 = 16 * 15

Simplifying:

12 * 20 = 16 * 15

Multiply 12 * 20

240 = 16 * 15

Multiply 16 * 15

240 = 240

Add '-240' to each side of the equation.

240 + -240 = 240 + -240

Combine like terms: 240 + -240 = 0

0 = 240 + -240

Combine like terms: 240 + -240 = 0

0 = 0

Solving

0 = 0