4. 18 is 80% of what?
A. 20
B. 22.5
C. 14.4
D. 9

Step-by-step explanation:

one gallon is 128oz.

1445 gallons are how many Oz?

that applies the same principle as every-day situations like "every guest will eat 2 dumplings. 12 guests are coming, so how many dumplings do I have to prepare ?"

or totally simple : "every child will get one gift. 4 children are coming, so how many gift do I have to prepare ?"

it all works with multiplication. it is the ultimate application for multiplication.

that is why we use "times" in normal language as in mathematical terms. like "it takes 3 screws to mount a leg to a table. and the table needs 4 legs. how many times do I need to fasten a screw to finish one table ?" well, 4 times 3 or 4×3 = 12 times.

and so, the answer to the original question is then I need to take the amount of one gallon 1445 times.

128 × 1445 = 184,960oz

Answer:

66 mph

Step-by-step explanation:

w = e - 18

2w + 2e = 300

2 (e - 18) + 2e = 300

2e - 36 + 2e = 300

4e - 36 = 300

4e = 300 + 36 = 336

e = 84 mph

w = 66 mph

The westbound train is travelling at 66 mph

Answer:

4 is B

5 is C

Step-by-step explanation:

Answer:

1.) y = 4/3x + (-5)

2.) y = -5x + 1

Answer:

15 minutes

Hope its help

Answer:

15 minutes

Step-by-step explanation:

I added just to get 15 because 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Wich will be 10:00

Answer:

Step-by-step explanation:

Answer:

amplitude = 2

Step-by-step explanation:

Given

y = a cosbx

amplitude = | a | , period = [tex]\frac{2\pi }{b}[/tex]

y = 2cos2∅

with amplitude = | 2 | = 2

Answer:

[tex]\displaystyle 2[/tex]

Step-by-step explanation:

[tex]\displaystyle y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A|[/tex]

With the above information, you should now tell what the amplitude value is.

I am joyous to assist you at any time.

Answer:

14

because 6(5)=30 and -2(8)=-16

30-16=14

Answer:

14

Step-by-step explanation:

All we need to do to get the value of 6a-2b is to plug in 5 for the variable "a" (replace a with 5) and plug in 8 for variable "b" (replace b with 8).

Because the variables are right next to the number, that indicates multplication, so the equation is basically saying 6*a-2*b

So let's plug in the numbers for the variables and solve:

6*5-2*8

6*5=30

2*8=16

30-16=14

So our final answer is 14

Answer:

I can help you just comment on this if you still need help.

Answer:

I think the answer is 169 because of the exponent

Answer:

Step-by-step explanation:

The usual definition of pi is the ratio of the circumference of a circle to its diameter, so that the circumference of a circle is pi times the diameter, or 2 pi times the radius. The animation above shows that a circle can be cut and rearranged to closely resemble a parallelogram (with height r and base pi times r) of area pi times the square of the radius. By dividing the circle into more than eight slices, the approximation obtained in this manner would be even better. By dividing the circle into more and more slices, the approximating parallelograms approximate the area of the circle arbitrarily close. This give a geometric justification that the area of a circle really is "pi r squared".

Answer: y=mx+b

Step-by-step explanation: I didn’t really know what you wanted. Hope this helps.

There are 24 ways how a particle can travel in XYZW space from the origin to the point (4, 3, 5, 4).

The number of ways how a particle can travel in XYZW space from the origin is equal to the total permutations associated to the quantity of coordinates within the generated space. That is to say:

[tex]x = 4! = 4\times 3\times 2 \times 1[/tex]

[tex]x = 24[/tex]

There are 24 ways how a particle can travel in XYZW space from the origin to the point (4, 3, 5, 4).

We kindly invite to check this question on permutations: https://brainly.com/question/14767366

Step-by-step explanation:

The Inaquality Notation should be ( x < - 3 ), you have it right but need to turn the arrow around or you can put in another form. ( x > 0 ) with line under the arrow.

Answer:

A

Step-by-step explanation:

15*6=90

90*5=450

Answer:

A. 450

Step-by-step explanation:

6*5 = 30

30*15 = 450

Answer:

4

Step-by-step explanation:

2 + 2 = 4

you have two and you add 2

you get 4

Hope this helps!

Answer:

7°F

Step-by-step explanation:

-9 - -2 = -7

Answer: 8

Step-by-step explanation:

Answer:

Yes, with some change to spare.

Step-by-step explanation:

He has 20$. Take 1/5 of it, it's 4$ (because 4x5 = 20), so he will be left with 16$. He owes less than this, 15$, so he can repay his debt in full and have still 1$ left.

Answer:

1) 150°

2) 30°

3) 50°

4) 70°

5) 100°

Answer:

[tex]m=\frac{-1}{3}[/tex]

Step-by-step explanation:

In the easiest explanation, the answer would be [tex]m=\frac{-1}{3}[/tex]

Using [tex]m=\frac{rise}{run}[/tex]  you will go down one point from [tex](-1,-1)[/tex] because rise is -1. From that point, you will go three points to the left that being because run is a positive number. Then you will find yourself being at the second point which is [tex](2,-2)[/tex].

Another explanation is basically using the slope formula

[tex]m=\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]

Answer:

A) -1/3

Step-by-step explanation:

Answer:

A) 1, 4, 5, 9, 14, 23, 37

B) 2, 4, 6, 10, 16, 26, 42

Step-by-step explanation:

1. The Fibonacci sequence states that each number is the sum of the two numbers before it.

2. Given the information above, let's solve the question.

-> A: 9 + 14 = 23, 14 + 23 = 37

-> B: 10 + 16 = 26, 16 + 26 = 42

Therefore, the answer is:

A) 1, 4, 5, 9, 14, 23, 37

B) 2, 4, 6, 10, 16, 26, 42

Answer:

slope: -2

y intercept: 3

Step-by-step explanation:

Answer:

30°

Step-by-step explanation:

as sum of angles = 180°

so 180° -(90° + 60°) = 30°

[tex]\qquad[/tex] ☀️It's given,One angle of a right triangle measures 60°.

[tex]\qquad[/tex] According to the question :-

[tex]\qquad \longrightarrow {\purple {\underline{\underline{\pmb{\sf{ Sum_{(All \:angles) }= 180°}}}}}}[/tex]

[tex]\qquad \pmb{\sf\longrightarrow 60° + 90° + x = 180°}[/tex]

[tex]\qquad \pmb{\sf\longrightarrow 150° + x = 180°}[/tex]

[tex]\qquad \pmb{\sf\longrightarrow x = 180° - 150°}[/tex]

[tex]\qquad \longrightarrow {\pink{\underline{\underline{\pmb{\sf{ x= 30°}}}}}}[/tex]

Therefore–

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

Answer:

D

Step-by-step explanation:

[tex]Tan \ 19 = \dfrac{Opposite \ side}{Adjacent \ side}\\\\0.3443 = \dfrac{x}{15}\\\\0.3443*15=x[/tex]

x = 5.1645

x = 5.2

Mathematical operations are used to represent the relationship between variables

The results of the operations are 8 and 254

The operation is given as:

a * b = 4a^2 - b

(a) 2 * 8

This means that:

a = 2

b = 8

So, we have:

2 * 8 = 4 * 2^2 - 8

Evaluate the exponents

2 * 8 = 4 * 4 - 8

Multiply

2 * 8 = 16 - 8

Subtract

2 * 8 = 8

(b) 2 * 8 * 2

In (a), we have:

2 * 8 = 8

So, the operation becomes

2 * 8 * 2 = 8 * 2

This means that:

a = 8

b = 2

So, we have:

8 * 2 = 4 * 8^2 - 2

Evaluate the exponents

8 * 2 = 4 * 64 - 2

Multiply

8 * 2 = 256 - 2

Subtract

8 * 2 = 254

Hence, the results of the operations are 8 and 254

Read more about operations at:

https://brainly.com/question/11095477

Answer:

<1 = 82.9 degrees

<2 = 7.1 degrees

Step-by-step explanation:

<1 = x

<2 = x - 75.8

x + x - 75.8 = 90 degrees

2x = 90 + 75.8

x = 165.8/2

x = 82.9

x / 2 - 1 = 3

Add 1 to both sides.

x / 2 = 4

Multiply both sides by 2.

x = 8

Now lets put in 8 for x in our original equation:

8 / 2 - 1 = 3

4 - 1 = 3

3 = 3

This is correct, therefore we know x = 8.

I hope I've helped! :)

Answer:

x=33

Step-by-step explanation:

(x+20)+(4x-5)=180

5x+15=180

5x=165

x=33