What is 21=14+7x I need help

Answer:

[tex]y=-\frac{4}{3}x+20[/tex]

Step-by-step explanation:

stupid enough

y=mx+b

[tex]\frac{y1-y2}{x1-x2}[/tex]

slope = 16-12/3-6

-4/3

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

plug in x and y

16=-4/3(3)+b

b=20

3 months

We can use a systems of equations to find when the values will equal each other, with x equal to months

Lara's Puppy: 0.5x+3.5

Monica's Puppy: x+2

Now create an equation for these puppy's weights to equal each other, and solve:

0.5x+3.5=x+2

0.5x=1.5

x=3

Answer:

x=-6

Step-by-step explanation:

5x+2=6x+8

-5x     -5x

2=x+8

-8   -8

-6=x

Answer:

Step-by-step explanation:

Add the like terms

5f+11g+15h

Answer: Jon has the best rate

Step-by-step explanation:

Answer:

ok so it'll be the first one

Answer:

Step-by-step explanation:

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

slope is the diference in y-coordinates over the diference in x-coordinates

Answer:

y = 3x - 6

y = -x+2

Answer:

18 per serving

Step-by-step explanation:

54/3=18   just divide to find the unit rate

Answer:

1 and 19

Step-by-step explanation:

I believe this is a factoring problem.

Example:

If we have the equation x^2-2x-3

We can find two numbers that multiply to -3 that add to -2

The two numbers are -3 and 1

(x-3)(x+1)= So x=3 and x=1

Answer:

1 and 19

Explanation:

1x19=19

1+19=20

Answer:

The value of x = 7

Step-by-step explanation:

Given the right triangle

so

Right angle + α + β =  180°

90° + 4x+7 + 8x-1 = 180

Group like terms

[tex]4x+8x+90+7-1=180[/tex]

Add similar elements: :4x+8x=12x

[tex]12x+90+7-1=180[/tex]

[tex]12x+96=180[/tex]

[tex]12x=84[/tex]

Divide both sides by 12

[tex]\frac{12x}{12}=\frac{84}{12}[/tex]

[tex]x = 7[/tex]

Therefore, the value of x = 7

Answer:

1. -b^2+13b

2. 1.9y^2-1.4y+4

Step-by-step explanation:

1. -0.8b^2+7.4b+(5.6b-0.2b^2)

Simplify: -0.8b^2+7.4b+5.6b-0.2b^2

Add like terms: (-0.8b^2-0.2b^2)= -1b^2/-b^2 (7.4b+5.6b)= 13b

Answer: -b^2+13b

2. (7.3y-y^2+4)+0.5y^2-(8.7y-2.4y^2)

Simplify: 7.3y-y^2+4+0.5y^2-8.7y+2.4y^2

Add like terms: (2.4y^2-y^2)= 1.9y^2 (7.3y-8.7y)= -1.4y (don't forget about the 4)

Answer: 1.9y^2-1.4y+4

Answer:

b

Step-by-step explanation:

Answer:

A EDGE 2020

Step-by-step explanation:

I got it wrong twice and it gave me the answer :)

The point represents z₁ - z₂ will be A. Then the correct option is A.

The complex number is the combination of the real part and the imaginary part. Then the complex number is given as

⇒ a+bi

The complex numbers z₁ and z₂ are graphed.

The expression of z₁ and z₂ are given below.

z₁ = 4 – i

z₂ = –3 – 2i

Then the difference between z₁ and z₂ will be

z₁ - z₂ = (4 – i) – (–3 – 2i)

z₁ - z₂ = 4 – i + 3 + 2i)

z₁ - z₂ = 7 + i

Then the correct option is A.

More about the complex number link is given below.

https://brainly.com/question/10251853

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Answer:

A. 36.6

B. -94.18

C. -3.25

D. -75.01

E. -54.03

Answer:

a. 36.6

b. - 94.18

c. - 3.25

d. - 75.01

e. -54.03

Step-by-step explanation:

Hope this helps, have a great day

Answer:

one solution

Step-by-step explanation:

2(4x-1) = 8x -1

8x -1 = 8x-1

Answer:

A. 26

Step-by-step explanation:

We can just put in the value of x into the equation.

x(15 - x) = 15x - x²

            = 15 × 2 - 2²

            = 30 - 4

            = 26

Answer:

You'll pay $3013

Step-by-step explanation:

Amount to pay=$2620+Interest accrued

A=$2620+($2620×0.03×5)

A=$2620+$393

A=$3013

Answer:  D i think

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

0.42347247428

Step-by-step explanation:

my calcuator

7/16.52

Answer:

9.52

hope it helpsssssssssssssss

Answer: At first I though O but you would be able to use A because you are able to make that 9 = to that 8

Step-by-step explanation:

The intersection point tells her the side length that creates an equal perimeter and area.

A closed shape's perimeter is the sum of the lengths of its outside boundaries. The lengths of all the sides are added to determine the measurement.

Jenny is an architect and is working to find the side length of a room in a house plan she is reviewing.

She knows that she can find the side length from the area using the formula 8 = A.

She graphs the formulas and finds the intersection point.

The intersection point of the two equations represents the solution where the side length satisfies both the equations, giving an equal perimeter and area. Therefore, the intersection point tells her the side length that creates an equal perimeter and area.

To learn more about the perimeter of a shape:

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Answer:

By two points.

In the figure at the top of the page, the ray would be called AB because starts at point A and passes through B on its way to infinity. Recall that points are usually labelled with single upper-case (capital) letters

Step-by-step explanation:

Answer:

By two points.

In the figure at the top of the page, the ray would be called AB because starts at point A and passes through B on its way to infinity. Recall that points are usually labelled with single upper-case (capital) letters

Step-by-step explanation:

Answer:

if 6 people take the medicine, around 5 people will get cured if the cure probability is 85%.

Step-by-step explanation:

Given that a certain medicine cures 85% of the people who take it.

As 6 people take the medicine, we need to determine how many will be cured.

As

85% = 85/100 = 0.85

All we need is to multiply 6 with 0.85.

i.e. 6 × 0.85 = 5 (Rounded to the nearest 1 or  the Ones Place)

Thus, if 6 people take the medicine, around 5 people will get cured if the cure probability is 85%.

Answer:

Step-by-step explanation:

[tex]2x - 14 = 3x + 6[/tex]

Move 3x to the other side of the equation

[tex]2x - 3x - 14 = 6 \\ - x - 14 = 6[/tex]

Move -14 to the right side of the equation.

[tex] - x = 14 + 6 \\ - x = 20[/tex]

Multiply both sides by - 1

[tex] - ( - x) = - 20 \\ x = - 20[/tex]

We have the final answer as

Hope this helps you

Answer: add 14 to both sides of the equation

2x-14=3x+6

2x-14+14=3x+6+14

Simplify

add the numbers

2x-14+14=3x+6+14

2x=3x+6+14

add the numbers

2x=3x+6+14

2x=3x+20

subtract 3x from both sides of the equation

2x=3x+20

2x-3x=3x+20-3x

simplify

Combine like terms

2x-3x=3x+20-3x

-x=3x+20-3x

Combine like terms

-x=3x+20-3x

-x=20

Divided both sides of the equation by the same term

-x=20

-x/-1=20-/-1

Simplify

Cancel terms that are in both the numerator and denominator

-x/-1=20/-1

x=20/-1

Divide the numbers

x=20/-1

x=-20

So the answer is x=-20

Hope this helps... Stay safe and have a great day/night!!! :D

Answer:

80%

Step-by-step explanation:

because 7200 / 300 equals 24 and 24 / 30 equals .8 so its 80% and if you want to check the answer you take 30 * .8 OR 80% and it gives you 24

The percent markup is 25%.

Markup percentage is calculated by dividing the gross profit of a unit (its sales price minus it's cost to make or purchase for resale) by the cost of that unit.

Given that, A department store buys 300 shirts for a total cost of $7,200 and sells them for $30 each.

Cost of one shirt = 7200 / 300 = $24

And they sold at $30 each,

Percent markup = 30-24 / 24 × 100

= 25%

Hence, the percent markup is 25%.

Learn more about Markup percentage, click;

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Answer:

b

Step-by-step explanation:

Step-by-step explanation:

8. You divide each side by 8

9. You multiply each side by 15.2

10. You multiply bith sides by 8. 7

11. You divide both sides by 3.14

Hope this helps, have a wonderful day