2. For which equation is y = 7 a solution

2 &. 3
Which is a equation

Answer:

x = $1500 x 0.40

Step-by-step explanation:

This is how you find 40 percent of the original cost sorry If this isn't what you were looking for :(

Answer:

[tex]\displaystyle m=-1[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

Point (2, 5)

Point (-1, 8)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Answer:

25 ≥ 0.90b + 2m

Step-by-step explanation:

Given:

Cost of each banana = $0.90

Cost of each mango = $2

Total amount = $25

Find:

Inequality

Computation:

Assume;

Number of banana = b

Number of mango = m

Total amount ≥ Cost of total banana + Cost of total mango

25 ≥ 0.90b + 2m

Answer:

2230

Step-by-step explanation:

subtract 48 from 2212 which will be 2164 and then add 66 to 2164 and then you get 2230

Answer:

[tex]\huge\boxed{2329 \ \text{pounds}}[/tex]

Step-by-step explanation:

In order to solve this equation, let's see what we already know.

That's about it.

However, this can come useful to find the slope between the two points, which is the slope for the entire graph (since this is linear). The slope between two points is usually defined as [tex]\frac{\Delta y}{\Delta x}[/tex] (change in y / change in x). Our two points are (18, 2017) and (48, 2212).

The change in y between our two points is [tex]2212-2017 = 195[/tex], and the change in x is [tex]48 - 18 = 30[/tex]. Our slope will then be [tex]\frac{195}{30}[/tex], which comes out to be approximately 6.5. Therefore, our slope is 6.5.

Now that we know the slope, we can substitute inside our equation in slope intercept form.

[tex]y = 6.5x+b[/tex]

We have yet to find b, the y-intercept (how much the plane itself weighs). To find b, we can substitute a point on the graph into the equation and solve for b. We know that the point (18, 2017) is on the graph so let's use that.

Now that we know our y-intercept is 1900, we can create our equation by using the slope and the y-intercept.

[tex]y=6.5x+1900[/tex]

Finally, to find the weight of the plane with 66 pounds of fuel, we can substitute 66 inside this equation as x.

So the plane weighed 2329 pounds with 66 gallons of fuel.

Hope this helped!

Answer:

y-7 hope it helps your welcome

Answer: 6.5 inches

Step-by-step explanation:

From the question, we are informed that Claire is building a dollhouse where 1 inch on the plans is equivalent to 5 inches on the actual dollhouse.

​

​If the house is to be 32.5 inches tall, the height be on the plans will be one-fifth of the actual dollhouse. This will be:

= 1/5 × 32.5

= 6.5 inches

Answer:

Store B

Step-by-step explanation:

Store A: $80

Store B: $79.20

Store C: $79.80

Store D: $81

Answer:

4

Step-by-step explanation:

fdhtrh56

Answer: angle 7 and angle 10

Step-by-step explanation: trust me its correct

Answer:

The right answer is 9 and 10.  It is not 7 and 10 because if you can see one of the arrows for 10 is shorter than the arrow next to it for angle 7.

9 and 10 have one straight line that it is on than both share the short arrow.

Answer:4

Step-by-step explanation:

Given

Home team fans are 4 times the visiting team fans

Suppose there are x visiting fans

So, home team fans are 4x

The ratio of home-team fans to visiting team fans = [tex]\frac{4x}{x}=4[/tex]

Answer:

8 bulbs

Step-by-step explanation:

Step one:

Given data

Shelia buys flower bulbs from a catalog for $2 each and $4 shipping charge for the whole order

we are told that the total money spent is $20

let the number of bulbs ordered be x, and the total money spent be y

the equation for the situation is

y=2x+4

for a total amount of $20, we want to find x

20=2x+4

20-4=2x

16=2x

divide both sides by 2

x= 16/2

x= 8 bulbs

Answer:

a = 1, b = 1

Step-by-step explanation:

Expand the right side and compare the coefficients of like terms on both sides, that is

right side

(x - a)² + b ← expand factor using FOIL

= x² - 2ax + a² + b

Compare to left side x² - 2x + 2

Compare the coefficients of the x- term

- 2a = - 2 ( divide both sides by - 2 )

a = 1

Compare the constant terms

a² + b = 2 ( substitute a = 1 )

1² + b = 2

1 + b = 2 ( subtract 1 from both sides )

b = 1

Thus a = 1, b = 1

Answer:

$477

Step-by-step explanation:

63.6=378

11.9=99

378+99=477

(a) n+3......................

seventh term is 19

eight term is 22

nine term is 25

Answer:

[tex]x = \frac{367}{3}[/tex]

[tex]y = \frac{173}{3}[/tex]

Step-by-step explanation:

Equations

Let's call

x = measure of angle 1

y = measure of angle 2

The angles are supplementary, thus their sum is 180°:

x + y = 180        [1]

It's also known that one angle (x) is 7° more than twice the other (y), thus:

x = 7+ 2y        [2]

Substituting [2} in [1]:

7+ 2y + y = 180

Operating:

7+ 3y = 180

Subtracting 7:

3y = 180 - 7 = 173

Dividing by 3:

[tex]y = \frac{173}{3}[/tex]

And:

[tex]x = 7+ 2*\frac{173}{3}[/tex]

[tex]x = \frac{367}{3}[/tex]

Step-by-step explanation:

xy + 10 = 0. => y = -10/x.

2x + 3y = 7. => 3y = -2x + 7, y = -2/3 x + 7/3.

When -10/x = -2/3 x + 7/3,

-10 = -2/3 x² + 7/3 x, 2/3 x² - 7/3 x - 10 = 0.

=> 2x² - 7x - 30 = 0

=> (2x + 5)(x - 6) = 0

=> x = -2.5 or x = 6.

dy/dx = d/dx [-10/x] = 10/x².

When x = -2.5, dy/dx = 10 / (-2.5)² = 1.6.

When x = 6, dy/dx = 10 / (6)² = 5/18.

Hence the gradients at the points are 1.6 and 5/18.

Answer:

The answer to your question will be C(The introduction is effective because it presents the topic in an  engaging way and clearly establishes the main idea. because The introduction is really effective in presenting the topic in an engaging way and it clearly establishes the main idea.

Answer:

C

Step-by-step explanation:

I took that test a while ago :)

Answer:

w`16

Step-by-step explanation:

I think it right

Answer:

answer is b

Step-by-step explanation:

the dot filled in means that its equal to 12 and above

when it's not filled it means that its not equal to 12

Answer:

Again, 3.

Step-by-step explanation:

Answer:

The answer is C. 200 miles.

Step-by-step explanation:

Answer:

200 miles

Step-by-step explanation:

This is where both cars intercept

Answer:

-110/11= -10

Step-by-step explanation:

-110 divided by 11 is -10 and to double check -10 times 11 is -110

Answer:

3.5841  x 10^7

Step-by-step explanation:

Answer:

35841000

Step-by-step explanation:

Move comma to right by five places and that includes this. 41 and after that just add zeros to fullfill that ^5

Step-by-step explanation:

Remember that the sum of angles on a straight line are supplementary. (180°)

Therefore 3x + 2 + 6x - 20 = 180.

=> 9x - 18 = 180

=> 9x = 198

=> x = 22.

Answer:

Step-by-step explanation:

Answer:

it's a parallelogram

Step-by-step explanation:

hope it helped you..

Answer:

I believe there would be 15.

Step-by-step explanation:

well 12×3=36

5×3=15 so 15:36

Answer:

64

Step-by-step explanation:

if 16 is 1/4 of the list then multiply 16 by 4

16×4=64

Answer:

I believe it is 17.50$

Step-by-step explanation:

Because 0.75 x 10 = 7.5 + 10 = 17.50$