Your friend sells you a bicycle for ​$63 Your friend sells you a bicycle for ​$21 The total cost is 150% of what your friend spent originally. How much did your friend spend​ originally? How much money did your friend earn by selling the bicycle and helmet to​ you? Your friend originally spent ​$_________

Answer:

so u dont subtract 5 from.6 like

Step-by-step explanation:

 .6                          .6

 -5         make it -5.0

brainlyest

Answer: bc it lets u see how accurate the numbers are in other in written from u can get 10 and 2 ixed up due to place vaule not in the right slot

Answer:

for the second space add a zero then multiply 5x5 and 5x2 add that and move the decimal 2 places to the left its infront of your addition answer.

Step-by-step explanation:

Answer:

6.75 i think might be rongw

Step-by-step explanation:

Answer:

6.75 i think

Step-by-step explanation:

Answer:

Overall, the price of the share declined by $6.

Step-by-step explanation:

1.5*4=6

Answer:

x= gimme mcdonalds

Step-by-step explanation:

Answer:

x=3

Step-by-step explanation:

2-4x=12

-2. -2

-4x=12

divide by negative four x=3

Answer:

[tex]\huge\boxed{\text{A is not linear.}}[/tex]

Step-by-step explanation:

Linear equations are equations that, when graphed, form a "line" and have a constant rate of change.

Usually, these are in the form [tex]y=mx+b[/tex] when put in that order.

There are a few types of equations, I'll list some of the major ones

Linear functions are usually in the form [tex]y=mx+b[/tex]

Exponential functions are usually in the form [tex]y=b^x[/tex]

Quadratic functions are usually in the form [tex]ax^2 + bx + c[/tex]

We must note that linear functions can not

A) Have an exponent on any x term

B) Have x and y multiplied by each other

We can see that every equation, except A

A) Follows the form [tex]y=mx+b[/tex] ([tex]-3x--7y=-21[/tex] can be simplified to [tex]y= \frac{3}{7}x-3[/tex])

B) Does not have any exponents on their x terms

That leaves A) to be the equation that isn't linear.

Hope this helped!

Answer:

Equation A is non-linear.

Step-by-step explanation:

We are given four equations in which we need to determine if they are linear or non-linear relationships.

Firstly, we need to know some information about linear equations:

Now, in order to check this easily, we need to place these equations into slope-intercept form.

Equation A

[tex]\displaystyle y = 3x^3 - 10[/tex]

We see that this has an exponent, so this cannot be a linear equation.

In fact, because it is cubed, this is called a cubic function. Therefore, equation A is not a linear equation.

Equation B

[tex]\displaystyle y = \frac{1}{2}x + 4[/tex]

This equation does not have a exponent. It also has a slope and a y-intercept. Therefore, equation B is a linear equation.

Equation C

[tex]\displaystyle y = 4x -\frac{5}{3}[/tex]

The equation does not have a exponent. It also has a slope and a y-intercept. Therefore, equation C is a linear equation.

Equation D

[tex]-3x--7y = -21[/tex]

First off, we need to get this equation into slope-intercept form, if possible.

[tex]\displaystyle -3x -- 7y = -21\\\\-3x + 7y = -21 \ \ \ \text{Change the sign on 7y.}\\\\7y = 3x - 21 \ \ \ \text{Move 3x to the other side by adding.}\\\\\frac{7y}{7}=\frac{3x-21}{7} \ \ \ \text{Divide both sides by 7 to isolate y.}\\\\\bold{y = \frac{3}{7}x-3}[/tex]

Our final equation is [tex]\displaystyle y = \frac{3}{7}x-3[/tex].

The equation does not have an exponent. It has a constant slope and a y-intercept. Therefore, equation D is a linear equation.

Let's check our equations:

Therefore, we have determined that Equation A is not a linear equation, making it non-linear.

Answer:

factor 1 = x

factor 2 = x - 5

(factor 1)  *  (factor 2)  = 84

    (x)      *      (x - 5)     = 84

          x² - 5x              = 84

              x² - 5x - 84   = 0

             (x - 12) (x + 7)  = 0

x - 12 = 0    or     x + 7 = 0

 x = 12       or      x = -7

factor 2 = x - 5   = (12) - 5  = 7    or    (-7) - 5  =  -12

Answer: 12, 7     or    -7, -12

Answer:

Below.

Step-by-step explanation:

84 = 7 * 12.

The 2 numbers are 7 and 12.

12 and 7 have a difference of 5.

Answer:

16

Step-by-step explanation:

X= 4

Y = 4

Z = 1

It all makes sense, you can try it yourslef

Answer:

$815.05

Step-by-step explanation:

7.25% x $759.95 = 55.10

7.25% = 55.10

$759.95 + $55.10 = £815.05

i did not round it, this is the answer on the calculator so not sure how to round it sorry

Answer

12 and 36 and 13

If  you need an explanation;

let's first isolate x in 3x + 4y = 15 ---

x = (15 - 4y) / 3

now substitute as x in the second equation provided ---

((15 - 4y) / 3)^2) + y^2  = 9,

((15 - 4y) / 3)^2) +( 3y/3)^2  = 9,

((15 - 4y)^2 + (3y/3)^2)/3^2 = 9,

225 - 120y +25y^2/9 = 9,

225 - 120y +25y^2 = 81,

25y^2 - 120y + 144 = 0

we now solve using the quadratic formula  ---

[tex]y_{1,\:2}=\frac{-\left(-120\right)\pm \sqrt{\left(-120\right)^2-4\cdot \:25\cdot \:144}}{2\cdot \:25}\\=\frac{-\left(-120\right)\pm \sqrt{0}}{2\cdot \:25}\\=\frac{-\left(-120\right)\pm \sqrt{0}}{2\cdot \:25}\\\\= 12/5[/tex]

So then x = (15 - 4*12/5)/3 = 9/5. Our solution = (9/5, 12/5)

Explanation:

The two angles shown combine to 180 degrees because the angles form a straight line.

(3x+18)+(4x+15) = 180

7x+33 = 180

7x = 180-33

7x = 147

x = 147/7

x = 21

Answer:

6

Step-by-step explanation:

Im not to sure theirs not enough information

Answer:

The baker will make 60 cookies in 10 hours.

Answer:

y=50°

Step-by-step explanation:

if all triangles add up to 180° you would subtract the angle you already know(80) from 180 which would be 100°

since there are 2 corners we dont know you would divide by 2 which would be 50°

Answer:

true

Step-by-step explanation:

Answer: x = 6

Step-by-step explanation:

Answer:

She is wrong because each our, she earns 8$. 3 hours would give her $24 and another half-hour would give her 4 more dollars which would bring her to $28

Step-by-step explanation:

Answer:

The original price is 112.5

Step-by-step explanation:

80% of 112.5 is 90

brainliest plzz

Answer:

2 is slope

Step-by-step explanation:

d = √(Δy2 + Δx2) = √(82 + 42) = √80 = 8.94427

Distance between x's (Δx) is 4

-2 is y-intercept

m = 8 / 4 = 2 / 1 = 2

Answer:

First and second are functions, third isn't

Step-by-step explanation:

PLS GIVE BRAINLIEST

Answer:

1 and 2 are vertical

Third one is NOT

Answer:

2:5

Step-by-step explanation:

Answer:

2:5

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

the way that i was taught was that if you want to find out if a equation is linear is if you it cant have an exponential in it equation and it cant be a fraction and cant have a parenthesis(for the beginning it cant be a fraction or have a exponent.

Answer: 147

Step-by-step explanation:

To evaluate 2f(3)+3f(-3), we first need to find the values of f(3) and f(-3). Given f(x), we just plug in x=3, -3 into f(x).

f(3)=2(3)²-4(3)+9         [exponent]

f(3)=2(9)-4(3)+9          [parenthesis]

f(3)=18-12+9                [subtract]

f(3)=6+9                       [add]

f(3)=15

Now, we find f(-3).

f(-3)=2(-3)²-4(-3)+9      [exponent]

f(-3)=2(9)-4(-3)+9         [parenthesis]

f(-3)=18+12+9               [add]

f(-3)=30+9                    [add]

f(-3)=39

With the values of f(3) and f(-3), we can evaluate the expression.

2(15)+3(39)                  [multiply]

30+117                          [add]

147

Now, we know the value is 147.

Answer:

Part A: WORK(Below)                                   Part B: WORK (Below)

1)  2(2x-3)+2(x+4)=50                                    1) (2x-3)              (x+4)

2)  4x-6+2x+8=50                                         2) 2(8)-3             (8+4)

3)  4x+2x+2=50                                             3) 16-3= 13            12

4) 6x+2=50                                                                       13* 12

        -2   -2                                                                 Answer= 156

5) 6x=48

    6     6

6) Answer:  x=8

Step-by-step explanation: (PART A BELOW)

Step one (1): Multiply 2 times 2x and -3 multiply 2 times x and 2 times 4

Step four (4): Subtract -2 from 2 and 50

Step five (5): Divide 6x=48 by 6

Step Six (6): Answer: x=8

Step-by-step explanation: (PART B BELOW)

Step one (1): x equals to 8

Step Two (2): 2 times 8 which equals to 16 subtract -3

Step Three (3): 16-3=13

Step Four (4): (x+4)

Step Five (5) (8+4)=12

Step Six (6): 13 times 12

Step seven (7): Answer: 156

What is the Lenght and Width of  the Graden?

156

Answer:

56.6

Step-by-step explanation:

Since BK is a bisector of ABC at B,

this implies that:

ABC = ABK + KBC

ABC = 28.3 + 28.3

ABC= 56.6

Answer:

4.11

Step-by-step explanation:

ez math

Answer:

the answer is b , thanks