Answer? Appreciate the help

Answer? Appreciate The Help

Answers

Answer 1

Answer y = -2

Step 1.

In order to make an equation with 1 variable, substitute the right side of the first equation for x in the second equation for 3x + 5y = 20. In the example all instances of x in the second equation will be replaced by 10.

Rewrite the x so it will be 3 · 10.

3 · 10 + 5y = 20

Step 2.

Multiply 3 by 10.

3 × 10 = 30

Step 3.

Subtract 30 from both sides.

30 + 5y - 30 = 20 - 30

Step 4.

Simplify.

5y = -10

Step 5.

Divide both sides by 5.

1. Divide the numbers.

5 ÷ 5 = 1

= y

2. Simplify. [tex]\frac{-10}{5}[/tex]

Apply the fraction rule. [tex]\frac{-x}{y} =-\frac{x}{y}[/tex]

[tex]-\frac{10}{5}[/tex]

3. Divide.

10 ÷ 5 = 2

Y = -2


Related Questions

If 3x-7=5x, what is 6x?

Answers

Answer:

6x = - 21

Step-by-step explanation:

Given

3x - 7 = 5x ( subtract 3x from both sides )

- 7 = 2x

Then

6x = 3 × 2x = 3 × - 7 = - 21

Water is building up in a bathtub. After 3 minutes there are 12 gallons of water and after 5, there are 24 gallons of water. What is the average rate which water is entering the bathtub from t=3 to t=5 minutes? What is the average rate? Show work.

Answers

Answer:

i think it's 15 gallons

the points (-15, -3) and (-7, -1) both lie on the graph of the linear function y =f(x). What is the rate of change of f(x) with respect to x?
F: 4
H: 1/4
G: -4
J: - 1/4

Answers

Answer:

Step-by-step explanation:

The rate of change, m, is defined as

m=(y2-y1)/(x2-x1), in this case we have points (-15,-3) and (-7,-1) so

m=(-1+3)/(-7+15)

m=2/8

m=1/4

if RG = 4X+12 and HI = 10x-15, then x =​

Answers

T and g are the answer because you can’t do 10x and 15

The elevation of Houston,Texas is on average 614 feet above sea level. The elevation of Desert Shores, California is 61 feet below sea level. What is the difference in elevation between the two cities? Show your work.

Answers

Answer: 675ft

Step-by-step explanation: 614 + 61 (since it’s below sea level) =675ft

How do you know to which group an 8-year-old belongs, those
who must be accompanied by an adult or those who do not need
to be accompanied by an adult? Explain.

Answers

Answer:

Those who do not need to

Step-by-step explanation:

i would say this because they are old enoght to know how to do things by them self althought it does depend on who

I need help very fast please !

Answers

Answer:

Step-by-step explanation:

I like answer 3.... the series will add to 1/3 eventually

Answer:

Contents of this laser is 0.744 um and the mass of the earth

Write a equation that is equivalent that only uses addition
- 3x-8y-4-2

Answers

Answer:

Step-by-step explanation:

-3x - 8y - 2

what’s the value of e?

Answers

Answer:

e = 129

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

e is an exterior angle of the triangle , then

e = 60 + 69 = 129

Which expression is equivalent to -g-7+3g-6

a. - 4g - 13
b. - 8g - 3
c. -13 + 2g
d. - 4g - 1

Answers

Answer:

c. -13 + 2g is the correct option.

15203 + 10x2 - 183 – 12
O 3 (5.22 – 6) (2 – 2)
O (522 – 6) (3x + 2)
0 (52+ 6) (3x + 2)
o (582 – 6) (522 +2)

Answers

Answer:

the second one!

Step-by-step explanation:

math help-
Please help me answer the question below, I will give brainliest thing to whoever helps and gets it correct, thank you!

Answers

Answer:

y = 1/2 x + 5

Step-by-step explanation:

slope (m) = (y'-y) / (x'-x)

(y-6)/(x-2) = 1/2

y - 6 = 1/2 x - 1

y = 1/2 x + 5

If you wanna be Dora then please help me!

Liu is making a rabbit pen. The graph shows where he plans to place it in his backyard. Each unit on the graph represents 1 foot.


The length of the side between U and T is _______ feet.


Enter the number only.

Answers

Answer:

I think tge answer would be 24 I am not for sure

Help me plz :((( khan academy

Answers

Answer:

[tex]x=30\\[/tex]

Step-by-step explanation:

Answer:

x = 30

Step-by-step explanation:

[tex]\frac{45}{27} = 1.67\\[/tex]

1.67 x 18 = 30.06

round to the nearest whoeo number = 30

Find the product.
a.
5d - 79
b. 12 ab. 3cd

Answers

Answer:

35dg & 36abcd

Step-by-step explanation:

Multiply 7 times 5 then add the remaining terms for equation 1. For equation 2 multiply 12 by 3 for 36.

if f(x) =2x-6 then f(1)=​

Answers

Answer:

f(1) = -4

Step-by-step explanation:

Given that,

f(x) = 2x-6

We need to find the value of f(1).

Put x = 1 in the above expression.

f(1) = 2(1)-6

= 2-6

= -4

So, the value of f(1) is equal to -4.

Points A and B have the same x-coordinates but opposite y-coordinates.
How many units away are each of the points from the y-axis?
A.3
B.4
C.6
D.7

Answers

the answer is c. Six

Help me plzzzzzz!!!!!

Answers

Answer: Option A - 8/17

Cosine is Adjacent/Hypotenuse.

So B’s adjacent measure is 8, and the hypotenuse measure is 17. Thus, 8/17 is your answer.

London is working two summer jobs, making $7 per hour babysitting and making $13 per hour landscaping. In a given week, she can work no more than 14 total hours and must earn at least $130. Also, she must work at least 2 hours babysitting and no less than 8 hours landscaping. If xx represents the number of hours babysitting and yy represents the number of hours landscaping, write and solve a system of inequalities graphically and determine one possible solution.

Answers

Answer:

7,8,9,10

I HOPE ITS HELP

THANK YOU

how much is 48 from 12,5%

Answers

Answer:

6, but the question makes more sense when asking about 12.5% from 48

Step-by-step explanation:

to get a percentage of something, we just have to remember that [tex]X\% = \frac{X}{100}[/tex] and that we just need to multiply.

Yes, percentages are just numbers, but the percentage sign lets us signify the purpose of a number.

48 * 12.5% = 48 * 0.125 = 48 / 8 = 6

describe the vertical shift of Y=x^2-9

Answers

Answer:

ok so i dont know exactly what the answer is but this khan academy video will help just search.

describe the vertical shifted of y x 2 9 units

Okay I have reposted the question. Please help me ASAP

Answers

Answer:

angle 9

Step-by-step explanation:

A cylinder has a height of 4 yards. Its volume is 452.16 cubic yards. What is the radius of the cylinder?

Answers

Answer:

Step-by-step explanation:

V = π times r^2 times h (height)

452.16 = 3.14 times r^2 times 4

Multiply 3.14 times 4

452.16 = 12.56 times r^2

Divide 452.16 by 12.56.

452.16 / 12.56 = 36

36 = r^2

The square root of 36 is 6.

So the radius of the cylinder is 6 yards^3.

Honestly if anyone could help be understand how to solve these by factoring, that would be great! Thank you!

Answers

Answer:

1) Option 3

2) Option 3

3) Option 3

4) Option 1

5) Option 2

6) Option 3

7) Option 1

Step-by-step explanation:

1) [tex]y = x^2 + 4x + 3[/tex]

Lets split the middle term.

[tex]=> y = x^2 + 3x + x + 3[/tex]

[tex]=> y = x(x+3) + 1(x + 3)[/tex]

[tex]=> y = (x+1)(x+3)[/tex]

[tex]x = -3 , -1[/tex]

2) [tex]y = 8x^2 - 22x + 5[/tex]

Lets split the middle term.

[tex]=> y = 8x^2 - 20x - 2x + 5[/tex]

[tex]=> y = 4x(2x - 5) - 1(2x - 5)[/tex]

[tex]=> y = (2x - 5)(4x - 1)[/tex]

[tex]x =\frac{1}{4} , \frac{5}{2}[/tex]

3) [tex]y = x^2 - 5x[/tex]

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

[tex]x = 0 , 5[/tex]

4) [tex]y = 12x^2 + 18x[/tex]

[tex]=> y = 6x(2x + 3)[/tex]

[tex]x = \frac{-3}{2} , 0[/tex]

5) [tex]y = x^2 - 7x + 12[/tex]

Lets split the middle term.

[tex]=> y = x^2 -3x - 4x + 12[/tex]

[tex]=> y = x(x - 3) - 4(x - 3)[/tex]

[tex]=> y = (x - 3)(x - 4)[/tex]

[tex]x = 3,4[/tex]

6) [tex]y = 3x^2 + 10x + 8[/tex]

Lets split the middle term.

[tex]=> y = 3x^2 + 6x + 4x + 8[/tex]

[tex]=> y = 3x(x + 2) + 4(x + 2)[/tex]

[tex]=> y = (x + 2)(3x + 4)[/tex]

[tex]x = -2 , \frac{-4}{3}[/tex]

7) [tex]y = x^2 - 4x - 45[/tex]

Lets split the middle term.

[tex]=> y = x^2 - 9x + 5x - 45[/tex]

[tex]=> y = x(x - 9) + 5(x - 9)[/tex]

[tex]=> y = (x - 9)(x + 5)[/tex]

[tex]x = -5 , 9[/tex]

Find the value of x.

Answers

Answer:

x= 48

exterior angle theorem

-12+48 = 36

48x3= 144

36+134= 180

Choose the correct solution for the inequality:
-4x + 5 >-5

A: x < 2.5
B: X > 2.5
C: X <-2.5
D: X > -2.5

Answers

Answer:

A

Step-by-step explanation:

We have -4x > -10, so 4x < 10

Answer:

A. x < 2.5

Step-by-step explanation:

you subtract 5 on both sides

then you get -4x > -10.

then you divide -4 on both sides

and you get x<2.5

A family adopts a puppy that weighs 7 7/8 lbs. they take him to the vet 2 weeks later, and he weighs 12 3/16 pounds.How much weight did he gain.

Answers

Answer:

4.625 lbs or 4 5/8

Step-by-step explanation

12 3/16- 7 7/8=

Answer:

the answer is 4 and 5/16

Step-by-step explanation:

Help as soon as possible!!

Answer only if you know!

At least answer one of them!

Answers

Answer:

c) x=1.23

Step-by-step explanation:

a =3

b=2

c=-7

use quadratic equation where

[tex] { ax}^{2} + bx + c = 0 = \frac{ - b \: + or \: - \sqrt{ {b} ^{2} - 4ac} }{2a} [/tex]

-2+/- square root of (2^2- (4×3×-7) ) all that over 2x3

square root of (2^2-(4×3×-7) )

= 9.38083152

2×3=6

-2+or - 9.38 all that divided by 6

-2+9.38= 7.38÷6

x=1.23

or

-2-9.38 all divided by 6

-2-9.38= -11.38 ÷6

x= -1.9

all in all x can't be negative meaning x=1.23

For 5 months Tomas buys 4 boxes of crunchy granola bars and 3 boxes of chewy granola bars for his family.
Crunchy bars come in x bars and chewy granola bars come in y bars. Which two expressions can be used to
show the total number of granola bars Tomas buys.

Answers

x bars <4> and y bars come in <3>

Answer:

5(4x + 3y) = 20x + 15y

Step-by-step explanation:

The matter of months in which in this case is 5 months is the coefficient.

The amount of boxes per month is important information. We don't know how many bars are in each box. EACH is a key word for multiplying. If we want to know quickly how many bars are in 4 boxes (or 3) of the granola bars. We can simply multiply the amount of bars for each box with the amount of boxes. Since we don't know the amount  of bars there are in each box we are going to use a variable. so it would look like this- 4x + 3y BUT we need to add the coefficient. Now rewrite the expression. 5(4x + 3y)

We can use the distributive property to generate an equal expression.

help help pls pls pls​

Answers

Answer:

x = 13.6 in

Step-by-step explanation:

The arc x is calculated as

x = circumference of circle × fraction of circle

   = 2πr × [tex]\frac{0.8}{2\pi }[/tex] ( cancel the 2π on numerator/ denominator )

   = 17 × 0.8

   = 13.6 in

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