MATHEMATICS MIDDLE SCHOOL

How many degrees mustFigure A be rotated
counterclockwise around
the origin in order to line
up with Figure B?
A. 90
C. 270
B. 180
D. 360

Answers

Answer 1

Answer:

Answer:

180

Step-by-step explanation:

180 is half, so that would mean it would be on the opposite side of the figure.

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Elsie bought a video game for $85.00. If the store charges 170% of its cost for the game, how much is the store’s profit?

Answers

The profit of the store is the amount the store makes on top of the cost of

each game sold.

The store's profit is $35.00

Reason:

Theamount Elsie bought the video game = $85.00

The percentage the store charges = 170% of the cost of the game

We have;

Let C represent the cost of the game, we have;

170% of C = 85.00

Which can be expressed as $(170)/(100) * C = 85.00$

Therefore;

$C = (85.00)/((170)/(100) ) = \frac{85.00 * 100}{{170} } = 50$

The cost of the game, C = $50.00

Profit = Selling price - Cost

Therefore, the store's profit, P = $85.00 - $50.00 = $35.00

Learn more here:

brainly.com/question/16866047

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144.5 U.S. dollars I think.

What is 0.005 in words

Answers

it's 5 thousandths because it's the third space

5 hundredths, its the same as whole numbers, just backwards

The teacher asked 4 students to measure 4 different objects. The table shown represents their measurements. Which student had the largest percent error?

Answers

Answer:

Student #4

Step-by-step explanation:

The formula for percentage error is given below. We will use this formula for all the four students and figure out whose error is the most.

Percentage Error = $|(MeasuredValue-ActualValue)/(ActualValue)|*100$

For student 1:

% Error = $|(49-50)/(50)|*100\n=|-0.02|*100\n=(0.02)(100)\n=2$

For student 2:

% Error = $|(25.5-25)/(25)|*100\n=|0.02|*100\n=(0.02)(100)\n=2$

For student 3:

% Error = $|(7.5-8)/(8)|*100\n=|-0.0625|*100\n=(0.0625)(100)\n=6.25$

For student 4:

% Error = $|(2.1-1.6)/(1.6)|*100\n=|0.3125|*100\n=(0.3125)(100)\n=31.25$

Clearly, 31.25% error of student #4 is the highest.

the correct answer is student four because it was off the most

Pedro cut a sheet of poster board into 10 equal parts. His brother used some of the poster board and now 8/10 is left. Pedro wants to make a sign fromeach remaining part of the poster board. How many signs can he make?

Answers

Answer: 8

Step-by-step explanation:

Given: Pedro cut a sheet of poster board into 10 equal parts.

let x be the total sheet.

then, one part of sheet= $(1)/(10)$ of the sheet

Now, His brother used some of the poster board and now 8/10 is left.

Therefore, if Pedro wants to make a sign from each remaining part of the poster board.

then, The number of signs he can make= $(8)/(10)/ (1)/(10)=(8)/(10)*(10)/(1)=8$

Hence, Pedro can make 8 signs.

out of the 10 his brother took two sheets out of the 10 that would leave him with 8 out of 10,left

help me wit these 3 questions plz.

A cone has a base radius of 7 centimeters and a height of 21 centimeters.

What is the volume of the cone?

28π cm3

49π cm3

147π cm3

343π cm3

Answers

1. Cone

$r=7cm$
$h=21cm$

$V= (\pi*r^2*h)/(3)=(\pi*7^2*21)/(3)=7^2*7*\pi=7^3\pi=343{\pi}cm^3$

Answer: D

2. Cylinder

$r=5ft$
$h=16ft$

$V= \pi*r^2*h=\pi*5^2*16=25*16\pi=400\pi ft^3$

Answer: A

3.Pyramid

In this case it will be

$V= (a*b*h)/(3)$

$a=9ft$
$b=4ft$
$h=12ft$

$V= (4*9*12)/(3)=4*3*12=144 ft^3$

Answer: B

Which point represents the order pair (2,-4)

Answers

Answer: Second option.

Step-by-step explanation:

By definition, a Coordinate plane has an horizontal axis, which is called the x-axis and it also has a vertical axis,which is called the y-axis.

Observe in the picture given in the exercise that the point of intersection between the x-axis and the y-axis is the point $(0,0)$ , which is known as "Origin".