PLEASE HELP!

ROAD SIGNS Roadway signs such as the one shown are used to warn drivers of an upcoming steep down grade. What is the grade, or slope, of the hill described on the sign?

Answer:

Nika can make 15 cups of milk.

Step-by-step explanation:

To find how many cups she can make, we divide 3 3/4 by 1/4. First, we convert 3 3/4 to an improper fraction.

3 ¾ / ¼           Equation

15/4 /  ¼         Convert to improper

15/4 * 4/1        Reverse sign & second fraction

= 60/4

= 15

Also, 15 * 1/4 = 3  ¾, so its correct!

Answer:

9

Step-by-step explanation:

Answer:

Step-by-step explanation:

the answer is 9.575

Answer:

1. 7.07

2. 19.10

3.7.42

4. 67.27

5. 13.42

6. 21.8

7. 27.22

8.26.91

Step-by-step explanation: nope but hope it helps :)

Answer:

-5/2

Step-by-step explanation:

n +1/2 = -3/4

Cross Multiply

4n + 4 = -6

Then subtract 4 and put it on the other side

4n = -10

Now divide by 4 on both sides

n = -10/4

And finally, simplify

-10/4 = -5/2

Answer:

[tex]n = \frac{-5}{2}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define

[tex]\frac{n + 1}{2} = -\frac{3}{4}[/tex]

Step 2: Solve for n

Answer:

Gay.

Step-by-step explanation:

I means gay, some people just refer to that but most commonly known as 'gay'.

Answer:

[tex]H=210.25\ \text{units}[/tex]

Step-by-step explanation:

Given that,

[tex]H = -16t^2 + 84t + 100[/tex] ...(1)

We need to find the maximum height

For maximum height, put dH/dt = 0

[tex]\dfrac{d(-16t^2 + 84t + 100)}{dt}=0\\\\-32t+84=0\\\\t=\dfrac{84}{32}\\\\t=2.625\ s[/tex]

Put t = 2.625 in equation (1)

[tex]H = -16(2.625)^2 + 84(2.625) + 100\\\\=210.25\ \text{units}[/tex]

Hence, the maximum height [tex]=210.25\ \text{units}[/tex]

Answer:

D) {11,-4,-29}

Step-by-step explanation:

rewrite the equation as y= -5x+1 and plug in -2,1 and 6 to get y

-5*-2+1=11

-5*1+1=-4

-5*6+1=-29

Answer:

x = 60

Step-by-step explanation:

The two angles shown here are known as corresponding angles. This means they both equal the same amount of degrees. Knowing this, we can set up an equation:

2x + 15 = 135

2x = 120

x = 60

Therefore, x = 60

You can check your answer by substituting the answer for x:

2(60) + 15 = 135

120 + 15 = 135

135 = 135

Inequality Answer: 1 + y ≥ 3

I hope this helps, and Happy Holidays! :)

Answer:

9

Step-by-step explanation:

If she uses 3eggs for one sponge cake, then, the number of cake she can make is 29/3 which is equals to 9.

The number of eggs remaining are 2

Answer:

18.75

Step-by-step explanation:

Answer:

option d is the correct answer

Step-by-step explanation:

use formula for finding sum of all interior angles of regular polygon i.e. (n-2)×180 where n is no of sides of regular polygon then divide it by no. of sides of regular polygon to find measure of one angle of regular polygon and then subtract it from 180° to find the answer

Answer:

The sum is -14

Step-by-step explanation:

To solve this problem , first you should look at key words. The key word is SUM. What does sum mean? Sum means ADDING or addition. So,  you know what operation to use and then ADD the values of the 3 cards. -12+3+-5 = -14.

So the sum of the values are Of LuAnn's three cards is -14.   Hope it helps!

                                             ~ Happy holidays

Answer:

whatever is higher than 1.5 is higher than r

Step-by-step explanation:

-1.2 ≤ -0.8r

-1.2/0.8 ≤ -0.8r/0.8

-1.5 ≤ -r

-1.5/-1 ≤ -r/-1

1.5 ≥ r

1.5 is equal to or bigger than r

Answer: -0.8r is bigger

Step-by-step explanation:

Answer:

7.2 x 10 CUBED

Step-by-step explanation:

Step 1

To find a, take the number and move a decimal place to the right one position.

Original Number: 7,200

New Number: 7.200

Step 2

Now, to find b, count how many places to the right of the decimal.

New Number: 7 . 2 0 0

Decimal Count:   1 2 3

There are 3 places to the right of the decimal place.

Step 3

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: a x 10b

a = 7.2 (Please notice any zeroes on the end have been removed)

b = 3

Now the whole thing:

7.2 x 103

Step 4

Check your work:

103 = 1,000 x 7.2 = 7,200

Answer:

the answer is [tex]7.2\times \:10^3[/tex]

Step-by-step explanation:

hope this helps :)

Answer:

31.25 s

Step-by-step explanation:

We'll begin by calculating the speed of Finn.

NOTE: Finn is swimming at a constant speed. Hence we shall use any of the data given in the question above to determine the speed of Finn. This is illustrated below:

Time = 7.25 s

Distance = 11.6 m

Speed =?

Speed = distance / time

Speed = 11.6 / 7.25

Speed = 1.6 m/s

Therefore, the speed of Finn is 1.6 m/s

Finally, we shall determine the time taken for Finn to swim 50 m. This can be obtained as follow:

Speed = 1.6 m/s

Distance = 50 m

Time =?

Speed = distance / time

1.6 = 50 / time

Cross multiply

1.6 × time = 50

Divide both side by 1.6

Time = 50 / 1.6

Time = 31.25 s

Therefore, the time taken for Finn to swim 50 m is 31.25 s.

Answer:

31.25 Seconds

Step-by-step explanation:

Answer:

your answer should look like this.

Step-by-step explanation:

The horizontal line goes through y-intercept -1/2

Answer:

I believe X= 15

Step-by-step explanation:

Answer:

X = 0

Y = 3.25

Step-by-step explanation:

Hope this helps. Pls give brainliest.

Answer:

x = 0

y = 3.25

Step-by-step explanation:

You can do elimination. Multiply (9x + 4y = 13) by 2

4x - 8y = -26

18x + 8y = 26

22x = 0

x = 0

4(0) - 8y = -26

-8y = -26

y = 3.25

Answer:

x = 3.8 , y = 0.2

Step-by-step explanation:

Answer:

[tex]\huge\boxed{x=\dfrac{19}{5};\ y=\dfrac{1}{5}\to\left(\dfrac{19}{5};\ \dfrac{1}{5}\right)}[/tex]

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}3x-2y=11&|\text{multiply both sides by (-2)}\\x-4y=3\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}-6x+4y=-22\\x-4y=3\end{array}\right}\qquad|\text{add both sides of the equations}\\.\qquad-5x=-19\qquad|\text{divide both sides by (-5)}\\.\qquad\boxed{x=\dfrac{19}{5}}[/tex]

[tex]\text{Substitute it to the second equation}\\\\\dfrac{19}{5}-4y=3\qquad|\text{multiply both sides by 5}\\\\19-20y=15\qquad|\text{subtract 19 from both sides}\\\\-20y=-4\qquad|\text{divide both sides by (-20)}\\\\y=\dfrac{4}{20}\\\\\boxed{y=\dfrac{1}{5}}[/tex]

Answer: Add 315 gallons of 70% antifreeze to 90 gallons of 25% antifreeze to make a 60% mixture.

You need to end up a mixture that is 60% antifreeze.

You have 90 gallons of 25% antifreeze, which means it has .25*90 = 22.5 gallons of pure antifreeze mixed with a solvent (probably water).

.

You will add 'x' gallons of 70% antifreeze to make the 60% mixture.

So, at the conclusion, you will have (90+x) gallons  60% 'pure' antifreeze. That can be shown with the equation:

.

.25*90 + .7*x = .6*(90+x)

.

Multiply by 100 to eliminate fractions.

.

25*90 + 70x = 60(90 +x)

.

2250 + 70x = 5400 + 60x

.

10x = 5400 -2250

.

10x = 3150

.

x = 315 gallons of 70% antifreeze.

.

How much will you end up having on hand?

90 + 315 = 405 gallons

.

If it is 60% antifreeze, how much 'pure' antifreeze will be in the mixture?

.6*405 = 243

.

In the original 90 gallons, you have 22.5 gallons of pure antifreeze.

In the additional 315 gallons, you have .7*315 = 220.5 gallons.

22.5+220.5 = 243 gallons

Step-by-step explanation:

Hope this helps,

Have a great day

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The relationship between each proportion of antifreeze can be used to form an equation.

The number of 90% antifreeze that must be added is 490 gallons.

The question is incomplete. So, I will use the following details to answer the question

[tex]Av ai la bl e = 70[/tex] gallons of 10% antifreeze

[tex]x \to[/tex] gallons of 90% antifreeze

[tex]Total = x + 70[/tex] --- after mixing the solution; to get a 80% solution

The equation is then represented as:

[tex]70 \times 10\% + x \times 90\% = (x + 70) \times 80\%[/tex]

[tex]7 + 0.9x = 0.8x + 56[/tex]

Collect like terms

[tex]0.9x - 0.8x = 56 - 7[/tex]

[tex]0.1x = 49[/tex]

Divide by 0.1

[tex]x = \frac{49}{0.1}[/tex]

[tex]x = 490[/tex]

Hence, 490 gallons of 90% antifreeze must be added.

Read more about equations at:

https://brainly.com/question/2264804

Answer:

3.5 kg, 0.5 kg

Step-by-step explanation:

The starting weight is represented by the y intercept, and the slope of the line is 0.5, so that's the average weight gain per month. Hope this helps!

Answer:

coordinated answer: (7,7)

Answer:

sam and eric are going on a trip and thought to rent a car. they have to pay a fee of 30 dollars and an extra 7 dollar for each hour they take. sam and eric's are planned to spend $205 or less. how many hours can eric and sam rent the car?

Step-by-step explanation:

first assign a value for the variable, I will take H as hours

Answer:

Sorry i dont know

Step-by-step explanation:

We are to simplify the expression given

The simplified form of the expression is option B. 67/10x + 9

Given:

= 3(7/5x + 4) - 2(3/2 - 5/4x)

= [tex] \frac{21}{5} x + 12 - \frac{6}{2} - \frac{10}{4} x[/tex]

= 21/5x + 12 - 6/2 + 10/4x

collect like terms

= 21/5x + 10/4x + 12 - 6/2

= (84x+50x)/20 + (24-6)/2

= 134/20x + 18/2

= 67/10x + 9

Read more:

https://brainly.com/question/1280754

Answer: 67/10x + 9 would be your answer.

Answer:

0.048

explanation:

Answer:

you are correct!!

Step-by-step explanation:

6x=180

x=30

Answer:

Step-by-step explanation:

look 4x+2x=180

6x=180

x=30

Have a wonderful day

ask me for further questions

Answer:

right 1 unit and down 5 units

Step-by-step explanation:

Answer:

a-4

b-3

c-1

Step-by-step explanation:

The length of the octagon is 6cm, the area is given by 3h and the height is 7.23 cm.

A triangle is a closed, 2-dimensional shape with 3 sides, 3 angles, and 3 vertices.

In a triangle, the sum of all three angles is 180°

Triangle is a very common figure to deal with our daily life for example in our daily life to measure the height of any tower then there is a huge application of the right angle triangle.

Given the octagon with a perimeter of 48 cm

Let's say the length of each side is a

Perimeter = 8a

8a = 48

a = 6cm

Now,

The area of the triangle is given by

A = 1/2  × Base × Height

A = 1/2  × 6 × h

A = 3h

Now

A = 3h and the area is 21.7 cm²

So,

h = 21.7/3 = 7.23 cm

Hence "The length of the octagon is 6cm, the area is given by 3h and the height is 7.23 cm".

For more information about triangles,

https://brainly.com/question/2773823

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Given question is missing an image of the octagon is given below;