someone please help me out with this need for important grade

Answer:

Slope

Step-by-step explanation:

The equation of a line that has a slope of 8 and y-intercept of (0, -7) is y = 8x - 7.

In Mathematics, the slope-intercept form of a line can be calculated by using this mathematical expression:

y = mx + b

Where:

From the information provided above, we have the following slope and y-intercept on the line:

Y-intercept = -7

Slope, m = 8

Therefore, the required equation of line is given by:

y = mx + c

y = 8x + (-7)

y = 8x - 7

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Complete Question:

Find an equation of the line that has a slope of 8 and a y-intercept of (0, -7). write your answer in the form y = mx + b.

Let's assume x gallons of milk containing 8% butterfat and y gallons of milk containing 2% butterfat are used.

The total amount of milk is x + y gallons, and we want it to be equal to 258 gallons.

To determine the amount of butterfat in the mixture, we can multiply the volume of each type of milk by its respective butterfat percentage and sum them up.

For milk containing 8% butterfat, the amount of butterfat is 0.08x (8% is equivalent to 0.08 as a decimal).

For milk containing 2% butterfat, the amount of butterfat is 0.02y (2% is equivalent to 0.02 as a decimal).

Since we want the final mixture to contain 7% butterfat, we can set up the following equation:

0.08x + 0.02y = 0.07(258)

Simplifying the equation, we have:

0.08x + 0.02y = 18.06

To solve for x and y, we need another equation. Since the total amount of milk is x + y = 258, we can rearrange it to y = 258 - x.

Substituting this value into the equation above, we get:

0.08x + 0.02(258 - x) = 18.06

Solving this equation will give us the values of x and y, which represent the gallons of milk containing 8% butterfat and 2% butterfat, respectively, needed to obtain the desired 258 gallons.

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Answer:

Green Bay is 16° Colder than Chicago

Answer:

100 people

Step-by-step explanation:

if u notice the points are (2,6) and (6,18). 6÷2=3 and 18÷6=3, so if you catch this pattern than you can do 300÷3=100

Hi! I'm happy to help!

When Jenna bought the milk, it deducted (subtracted) $3.58 from her $20. So, let's subtract that here:

20.00

- 3.58

We have to borrow:

19.9(10)

- 3.58

10-8=2

19.9(10)

- 3.58

    .  2

9-5=4

19.9(10)

- 3.58

    .42

9-3=6

19.9(10)

- 3.58

    6.42

and 1-0=1

19.9(10)

- 3.58

$16.42

So, Jenna would receive $16.42 in change for her $20 bill.

I hope this was helpful, keep learning!

Answer:

Tortoise B

Step-by-step explanation:

8 inches a minute is equal to 40ft an hour.

Tortoise A: 32/per hour

Tortoise B: 40/per hour

The triangles are not similar

Given data ,

Let the first triangle be ΔJKL

Let the second triangle be ΔMNP

Now , the corresponding sides are

JK / JL ≠ NM / MP

where the corresponding sides of similar triangles are not in the same ratio

And , the common angle to both the triangles is ∠J = ∠M

So , ∠J = ∠M and JK / JL ≠ NM / MP

Hence , the triangles are not similar

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Answer:

the fence needed to enclose the garden = 140 ft.

Step-by-step explanation:

given:

rectangular garden is 25 ft. by 45 ft.

find:

how many feet of fence are needed to enclose it?

use the perimeter of a rectangle formula = 2L + 2W

let L = 45 ft.

let W = 25 ft.

plugin values into the formula

P = 2L + 2W

P = 2(45) + 2(25)

P = 90 + 50

P = 140 ft.

therefore,

the fence needed to enclose the garden = 140 ft.

Answer:

They should pay AED 180 as interest.

Step-by-step explanation:

Simple interest:

        P = The amount borrowed = AED 3000

        R = rate of interest = 3% per year

       t = time = 24 months = 24 ÷ 12 = 2 years

          \(\sf \boxed{Interest = PRt}\)

Substitute the values,

                            \(\sf = 3000 * \dfrac{3}{100}*2\\\\ = 30*3*2\\\\=AED \ 180\)

Answer:

∠ W = 53°

Step-by-step explanation:

the measure of the secant- secant angle W is half the difference of the measures of the intercepted arcs , that is

∠ W = \(\frac{1}{2}\) (YC - GT) = \(\frac{1}{2}\) (160 - 54)° = \(\frac{1}{2}\) × 106° = 53°

Answer:

-2x² - 10xy + 2y²

Step-by-step explanation:

4x² - 9xy - 4y² - 6x² - xy + 6y² =

= 4x² - 6x² - 9xy - xy - 4y² + 6y²

= -2x² - 10xy + 2y²

Answer:

You got your negatives messed up.  The answer was -5y-4x

Step-by-step explanation:

Expression: -8y + 5x + 3y -9x

Your objective: Simplify the expression

The First step, Combine like terms meaning -8y+3y and -9x+5x

Solve, -8y+3y

That would equal -5y

Next solve -9x + 5x

That would equal -4x

Write your expression in simplest form:

-5y-4x

What you did:

You combined like terms but didn't follow the negative rules

Remember: Positive and Negative =  Negative

                   Negative and Negative = Positive

        For example -8y + 3y

You chose to add -8 and 3 which you got -11

What you were supposed to do was to subtract.

A helpful trick: Since they are like terms you could rearrange the questions like this 3y-8y+5x-9x, You can see that you have to do subtraction left to right

3y-8y= -5y

5x-9x= -4x

Solution: -5x-4x

The maximum number of pens and pencils she can purchase is 10 pens and 30 pencils. The result is obtained by using substitution method on inequality problem.

The most important thing in inequality problem is the inequality symbol. The symbols are:

Teri wants to buy as many pencils and pens as possible by spending no more than $6.50. She wants three pencils for every pen. Each pencil costs $0.15 and each pen costs $0.20.

Find the maximum number of pens and pencils she can purchase?

Let's say:

The money spent is no more than $6.50. It means the maximum money spent is $6.50. We got the inequality.

0.15x + 0.20y ≤ 6.50

She wants 3 pencils for 1 pen. We have x = 3y.

Substitute x with 3y!

0.15(3y) + 0.20y ≤ 6.50

0.45y + 0.20y ≤ 6.50

0.65y ≤ 6.50

y ≤ 10

x = 3y = 3(10) = 30

Hence, Teri can purchase 10 pens and 30 pencils with the money she can spend.

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Answer:

12 - x^2 = -4

x^2 = 16

x = -4, 4

Answer:

$8.88

Step-by-step explanation:

-17.62 + 26.50 =

= 26.5 - 17.62

= 8.88

Answer:

164 cookies each

Step-by-step explanation:

divide 492 by 3. 3 Because it says Diana and her friends, and 492 because that is the total cookie count.

Answer:

The third statement: "A square has all the properties of a rectangle."

Answer:

Step-by-step explanation:

sp = 504

gain = 12%

in this case

sp =100%+12%=504

112%=504

1%=504/112 =4.5

100%=450

so cost =$450

Hope im correct, if i am im glad to be of service.

The relation that is a function is relation (b)

The ordered pairs in the option represent the given parameters

For a relation (i.e. the ordered pairs) to be a function, the following must be true:

Each y value on the ordered pair must have exactly one x value

i.e. no x value must point to the different y value

Having said that the relation that is a function is relation (b)

Hence, the the relation that is a function is relation (b)2

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Answer:

n=6m+8

Step-by-step explanation:

we hav to get n by itself

so start easy and add 8 to theother side

n-6m=8 then take 6m and add it the other side

n=6m+8 and there you go

Answer:

Step-by-step explanation:

n - 6m = 8

n = 8 + 6m

The value of angle x in the straight line is 41 degrees.

The sum of angles on a straight line is 180 degrees. In other words, angles on a straight line add up to 180°. Angles on a straight line relate to the sum of angles that can be arranged together so that they form a straight line.

Therefore, let's find the angles x.

Using sum of angles on a straight line,

x + 139 = 180

subtract 139 from both sides of the equation

x + 139 - 139 = 180 - 139

Hence,

x = 41 degrees

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Answer:

There are two main factors that make ocean water more or less dense than about 1027 kg/m3: the temperature of the water and the salinity of the water. Ocean water gets more dense as temperature goes down. So, the colder the water, the more dense it is. Increasing salinity also increases the density of sea water.

Step-by-step explanation:

yea

Answer:

It should be C because temperature does nothing but heat you up and cool you down

Answer:

 =  1.6

Unless you meant to clarify what in the equation you needed, but that is the answer to it.

Answer:

29 degrees

Step-by-step explanation:

Note how both triangles are isosceles triangles, which mean two angles will be equivalent. In the triangle with the marked angle measurement, since the total of angles in a triangle is 180, then the measurement of the unmarked angles have a sum of 180-64, which is 116. Then, as stated before, this triangle is isosceles, so the measurement of each unmarked angle is 116/2, which is 58.
Next, notice how the angle below angle x in that triangle shares a line with one of the 58 degree angles. This means that angle is 180-58, which is 122. Now, since the total of angles in a triangle is 180 and the triangle is isosceles, then angle x is (180-122)/2, which is 58/2, or 29 degrees

Given the circle of center z

QR = 12 , ST = 12 , UZ = 8 and VZ = 2x - 6

AS shown in the figure:

ZY ⊥ ST and ZW ⊥ QR

Given QR = ST = 12

So,

the line segment UZ = line segment VZ

So,

2x - 6 = 8

2x = 8 + 6

2x = 14

x = 14/2 = 7

And ZY is bisects the line segment ST

So,

SV is half the line segment ST

SV = 0.5 * 12 = 6

So, the answer is :

x = 7

SV = 6

Answer:

Y(0,13)

X(13,0)

Answer:

y = -2x + 4  

Step-by-step explanation:

We are given that a line has a slope (m) of -2 and passes through (5, -6).

We want to write the equation of the line.

There are three ways to write the equation of the line:

Any of these forms will work, however let's put it into slope-intercept form as that is the most common way.

As we are already given the slope, we can immediately plug that into the equation.

Substitute m with -2.

y = -2x + b

Now, we need to solve for b.

As the equation passes through (5, -6), we can use its values to help solve for b.

Substitute 5 as x and -6 as y.

-6 = -2(5) + b

Multiply.

-6 = -10 + b

Add 10 to both sides.

4 = b

Substitute 4 as b.

y = -2x + 4