A math teacher graded 45 problems in 3/5 of an hour. At that rate, how many problems can she grade in 1 hour?

Answer:

each cup is $1.20 each

Step-by-step explanation:

hope this helps

Answer:

20 marbles total...7 are green

Step-by-step explanation:

probability on first draw is 7/20...and since the marble was not replaced, the probability on the second draw is 6/19. And since they cant happen at the same time, we multiply

7/20 * 6/19 = 42/380 which reduces to 21/190

Answer:

Step-by-step explanation:

Remark

I really don't know what to write to these questions. I can never tell what the problem is. Perhaps it is right at the very beginning. You have to recognize what is taking place. In problem 9, the easiest point to follow is H going to H'. Do you see what is happening? H is sitting on the x axis and then something happens to it and behold, it is now sitting on the y axis. So it has rotated 90 degrees but which way?

Take your finger or a pencil and put it on H. Then make a circular motion to get to H'. You are going clockwise. (keep going in that direction till you wind up where you started. You are going in the direction of one of those old fashioned clocks. Now the trick in a rotation is if you can figure out what one point is doing, you know what all points are doing on the given figure.

So the translation is 90 degrees clockwise. That means the following rule must be operating

(x,y) ===> (y, - x)

H(-3,0) ===> H'(0, - - 3) = H'(0,3)

I(-2,1) =====>I'(1, - - 2) = H'(1,2)

J(0,1) =====>J'(1,0)

G(-3,-3)====>G'(-3, --3) = G'(-3,3)

11

At first you may think that this is a translation of some kind. I thought so at first. D and D' certainly look that way and C and C' also look that way. But B and E are not well behaved. You are looking at a 180 degree rotation

The rule you need here is (x,y) becomes (-x , - y)

I'll leave C and D to you and do one of the B and E

E(3,5)=E'(-3 , - 5)

9514 1404 393

Answer:

  9) (x, y) ⇒ (y, -x) . . . . rotation 90° CW

  11) (x, y) ⇒ (-x, -y) . . . rotation 180°

Step-by-step explanation:

9) Distance from the origin to an image point is the same as to the preimage point, but the direction is changed by 90° in the CW direction. For example, J is north of the origin, but J' is east, a direction change of 90° CW.

The transformation describing a 90° CW rotation is the rule ...

  (x, y) ⇒ (y, -x)

__

11) Distance and direction to each image point from the origin are equal and opposite of distance and direction to the preimage point. The figure has been rotated 180°. The corresponding rule is ...

  (x, y) ⇒ (-x, -y)

The domain of function H(t) is 0 ≤ t ≤ 20.

A function has an input and an output.

A function can be one-to-one or onto one.

It simply indicated the relationships between the input and the output.

Example:

f(x) = 2x + 1

f(1) = 2 + 1 = 3

f(2) = 2 x 2 + 1 = 4 + 1 = 5

The outputs of the functions are 3 and 5

The inputs of the function are 1 and 2.

We have,

From the graph,

We see that the value of t is from 0 to 20 seconds.

Now,

The value of t can be written as an inequality:

0 ≤ t ≤ 20

Thus,

The domain of function H(t) is 0 ≤ t ≤ 20.

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the difference in depth is 3 feet, you can find this by the equation 14-11

Answer:

.05(80) + .15(120)=

4 + 18 = 22

So, the total pick ups is 22.

Step-by-step explanation:

Answer:

8 years

Step by step guide:

100,000 x 8 = 800,000

600,000 x 8 = 4,800,000

6,900,000 + 4,800,000 = 11,700,000

12,500,000 - 800,000 = 11,700,000

Answer:

5 inch - first board

10 inch - second board

20 inch - third board

Step-by-step explanation:

x = first board

board two = 2x

board three =4x

x+2x+4X=35

7x=35

x=5 inch - first board

10 inch - second board

20 inch - third board

9514 1404 393

Answer:

  true for all values of x

Step-by-step explanation:

The absolute value of a linear function is always at least 0, so is always greater than -0.5. The inequality is true for all real numbers.

Answer:

STEP

1

:

Equation at the end of step 1

fm - (4 • (m + 2) - 3) = 0

STEP

2

:

Equation at the end of step 2

fm - 4m - 5 = 0

Answer:

{5 + [-5(2 - 4) : 2]}.4 = 40/ 1  = 40

Step-by-step explanation:

Subtract: 2 - 4 = -2

Multiple: -5 * the result of step No. 1 = -5 * (-2) = 10

Divide: the result of step No. 2 : 2 = 10 : 2 = 5

Add: 5 + the result of step No. 3 = 5 + 5 = 10

Multiple: the result of step No. 4 * 4 = 10 * 4 = 40

i hope this helps :)

3n=n-2

3n-n=2

2n=2

n=1

Hope it helps you! Please mark Brainliest! :)

Answer:

Step-by-step explanation:

Move y  to the opposite side of the equals sign while remembering to make it negative:

y + x = z  

|_______|

x = z - y

Hope this helped. A brainliest would be very much appreciated. (I need 1 brainliest so I can level up) :)

Answer:

5 1/2

Step-by-step explanation:

3/4+3/4+3/4+3/4+3/4+1/2= 4.25

4.25 = 4 1/2

The number of 3/4 groups is 6.

A fraction is written in the form of a numerator and a denominator where the denominator is greater that the numerator.

Example: 1/2, 1/3 is a fraction.

We have,

Total amount = 4(1/2) = 9/2

The number of groups.

= 9/2 ÷ 3/4

= 9/2 x 4/3

= 6

Thus,

There are 6 groups of 3/4.

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Answer:

SAS Postulate

Two sides and the included angle of one triangle are congruent to two sides and the included angle in a second triangle, then the two triangles are congruent.

Answer:

Simplifying

2xy + -4xy = 0

Combine like terms: 2xy + -4xy = -2xy

-2xy = 0

Solving

-2xy = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '-2'.

xy = 0

Simplifying

xy = 0

The solution to this equation could not be determined.

Step-by-step explanation:

i only got the first 1 sry

Answer:

6× 10^3 is the standard form of 6000

Answer:

I write 6000 , Six thousand in standard form.

The equation of line from the graph is y = 3x + 4

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

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

Given data ,

Let the equation of line be represented as A

Now , the value of A is

The equation y = 3x + 4 represents a line in the coordinate plane.

To graph this line, we can plot a few points

when x=0, y=3(0)+4=4,

So we have the point (0,4)

when x=1, y=3(1)+4=7,

So we have the point (1,7)

when x=-2, y=3(-2)+4=-2,

So we have the point (-2,-2)

Plotting these points and connecting them with a straight line, we get the graph of the line

Hence , the equation of line is y = 3x + 4

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Answer:

para saan po yarn anong grade

Answer:

18 units

Step-by-step explanation:

You don't need to use slope since both are using 13 for y.

22 - 4 (both x values) = 18

B. 18 units

Answer:

Step-by-step explanation:

You should add 9 fl. oz. of oil to your 3.75 gallons of gas.

Puch Maxi Moped from the mid-Eighties now since this moped doesn't run on straight gasoline, you need to create a special fuel mixture. This involves combining oil and gas in a specific ratio. The magic ratio here is 2.4 fl. oz. (fluid ounces) of oil for every gallon of gasoline.

You mentioned you've got 3.75 gallons of gas. To figure out how much oil you need, we can use some math. First, let's find out how much oil is required for one gallon of gas:

2.4 fl. oz. of oil/gallon x 1 gallon = 2.4 fl. oz. of oil.

So, for 3.75 gallons of gas, you'll need:

2.4 fl. oz. of oil/gallon x 3.75 gallons = 9 fl. oz. of oil.

You should add 9 fluid ounces of oil to your 3.75 gallons of gas to create the proper fuel mixture for your Puch Maxi Moped.

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Answer:

f(0) = -2.

Step-by-step explanation:

This question pertains to the y-intercept. By definition, the y-intercept is the point on the graph where it crosses the y-axis, and has coordinates, (0, b). It is also the value of y when x = 0.  Looking at the graph, the point where the line crosses the y-axis is (0, -2). The y-coordinate is the y-intercept, b.

Therefore, the value of the function when x = 0 is: f(0) = -2.

Answer:

just get the cube root of 614

Answer:

here.

3/4x−4−5/8x=−3

or, 3/4x−5/8x=−3+4

or, 3/4x−5/8x=1

or, 3*2/2*(4x)-5/8x=1

or,6/8x-5/8x=1

or,(6-5)/8x=1

or,1/8x=1

or,1=8x

or,x=1/8

Answer:

A=20

Step-by-step explanation:

Let the width be x

x=width. 5x =L

2(L+W)=p

2(5x+x) =24

10x+2x=24

12x=24

12x/12 =24/22

x=2

A =LxW

A = (5x2)x x

A =10 x2

A=20

Answer:

f(x)=(x+3)^3, horizontal translation/shift of 3 units to the left.

Step-by-step explanation:

f(x)=x^3 is your given function. f(x+3) is a horizontal shift of 3 units to the left because the "+3" is inside the parentheses and it's a shift to the left instead of the right because x needs to equal -3 for the quantity to equal 0. Overall, the graph shifts 3 units to the left.

Answer:

let the no be x ..then,

10% of x =80,000

10x=80,000*100

x=80,00,000/10

x=8,00,000

hence 10%of 8,00,000 is 80,000