MATHEMATICS MIDDLE SCHOOL

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Answers

Answer 1
Answer:

Answer:

The correct answer option is D. 0.42.

Step-by-step explanation:

We are given the results of a survey in which people were asked if they prefer reading books or e-books.

We are to find the marginal frequency of the number of people who prefer to read books.

For that, we will divide the total number of people who prefer reading books by the total number of people surveyed.

Marginal frequency = 105/250 = 0.42

Related Questions

two cars travel in opposite directions, starting from the same place at the same time. One travels at an average rate of 48 miles per hour and the other averaged at 55 miles per hour. in how many hours will the be 618 miles apart?
To become a member of an ice skating rink, you have to pay a $30 membership fee.The cost of admission to the rink is $5 for members, and $7 dollars for nonmembers. After how many visits to the rink is the total cost for members, including for membership fee, the same total cost for nonmembers?
Fifteen is added to the product of a number and 6. the result is 9. find the number.
Factor the sum of terms as a product of the GCF and a sum: 60+48 what is the ansawer?
A fountain on a lake sprays water in a parabolic arch modeled by the equation y = −0.4x2 + 3x, where y is the height in feet and x is the horizontal distance. A beam of light is passed through the fountain to create a rainbow effect. If the beam is directed at an angle modeled by the equation -2.2x + 4.9y = 8.18, at what distance from the ground will the beam first touch the water spray?

You work at a sandwich shop. The shop's special is a sandwich with one cheese, one vegetable, and one meat for $5.00. There are 4 cheeses, 6 vegetables, and 5 meats to choose from. You also get your choice of 3 kinds of bread. How many different sandwiches can you make?

Answers

you can make 360 different sandwiches by multiplying 4 by 5 by 6 by 3

Seven hundred twelve thousandths in expanded form

Answers

(7×100)+(0.001×12) = 700.012

Hope It Helps :]

6/4 in reduced is 1 2/4 I need help now

Answers

Its actually reduced to 3/2. What you do is fin the greatest common factor in both numbers which is 2 and divide them by 2. Which will get you 2/3.

Alex is playing a trivia game. On his first turn he lost 100 points. I need a second turn he lost 75 points. On his third turn he lost 85 points. Write a sum of three negative integers that model the change to Alex's score after his three turns.

Answers

-100 + -75 + -85 = -260

Mrs.Williams is knitting a blanket for her new bork granddaughter.The blanket is 2.25 meters long and 1.8 meters wide. what is the area of the blanket? Write the answer in centimeters.

Answers

The blanket is 2.25 meters long and 1.8 meters wide

Blanket will be in the shape of rectangle

Area of rectangle formula is Length * width

Given : Length = 2.25 meters

width = 1.8 meter

Area = Length * width

= 2.25 * 1.8 = 4.05

so the area of the blanket = 4.05 square meters

We need to convert the answer in centimeters

1 meter = 100 cm

4.05 meters = 4.05 * 100 = 405 square cm

the area of the blanket = 405 square cm

The blanket's area is 40,500 cm²

Further Explanation

The blanket length is 2.25 m

                    width is 1.8 m

The blanket usually in rectangular shape, so to calculate the area of the blanket would be:

\boxed {AREA = length * width }\n \boxed {=2.25 *1.8 }\n \boxed {=4.05 }

so the blanket's area is 4.05 m²

Here is how to do decimal numbers multiplication:

  2.25             ⇒ 2 decimal place

     1.8   x        ⇒  1 decimal place

 1800

235    +

4.050              ⇒ 3 decimal place  

to multiply decimal numbers, it is the same process as multiply the whole numbers, except the decimal place position. In the calculation above:

the first factor has 2 decimal place

the second factor has 1 decimal place

so the result will have 3 decimal place (2+1)

Back to the question, after we find out the blanket's area in meters, let's convert it to centimeters

\boxed {1 m = 100 cm }\n \boxed {(1m)^(2) = (100cm) ^(2) }\n \boxed {1m^(2) = 10000 cm^(2)  }

so \boxed {4.05m^(2) = 4.05 * 10000 cm^(2)  }\n \boxed {=40500cm^(2) }

The blanket's area is 40,500 cm²

Learn More

Converting pounds to ounces brainly.com/question/301873

Decimal numbers multiplication brainly.com/question/2181998

Converting meters to centimeters brainly.com/question/301836

Keywords: conversion, converting, unit of length, metric system of measurement, meter square to centimeter square, unit conversion, decimal numbers multiplication, additional, multiplication

Which is the simplified form of this expression?

(2x+3) (x-6)-2x^2+3x+30

Answers

-6x + 12

To find this answer, follow these steps:

First, multiply 2x + 3 and x - 6 using either the FOIL method or the box method. This should get you the answer of 2x^2 - 9x - 18

This should now replace the 2x + 3 and x - 6

So with that, you should have this currently:

2x^2 - 9x - 18 - 2x^2 + 3x + 30

Now, combine like terms:

The 2x^2 cancels each other out. After that, combine -9x and 3x to get -6x. Then -18 and 30.

This should leave you with the final answer of -6x + 12

Hope this helps!
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