MATHEMATICS MIDDLE SCHOOL

PLEASE HELPA group of students were surveyed to find out if they like bike riding and/or roller skating as a hobby. The results of the survey are shown below:

80 students like bike riding
20 students like bike riding but do not like skating
90 students like skating
40 students do not like bike riding

Make a two-way table to represent the data and use the table to answer the following questions.

Part A: What percentage of the total students surveyed like both bike riding and skating? Show your work.

Part B: What is the probability that a student who does not like bike riding also does not like skating?

Answers

Answer 1
Answer:

A. The percentage of the total students surveyed like both bike riding and skating is 73.91%

B. The probability that a student who does not like bike riding also does not like skating is 0.261

Calculation of the percentage & probability:

Since

80 students like bike riding

20 students like bike riding but do not like skating

90 students like skating

40 students do not like bike riding

So,

a. The percentage should be

= (80 + 90)/ = (80 + 20 + 90 + 40)\n\n= 170 / 230

= 73.91%

b. The probability is

= (20 + 40) / 230\n\= 60/ 230

= 0.261

Learn more about percentage here: brainly.com/question/21678821
Answer 2
Answer: For part A add up all your students then add up all your students that like bike riding and skating (80+90) divide that by the total number of students who took the survey

For Part be put 20+40  over the toatl number of student then simplify

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show how to solve the problem 378 ×6 using place value with regrouping. explain how you knew when to regroup

Answers

You should regroup when the product of the two numbers are greatre than nine so 378*6 6*8 is 48 so you would the 8 and regroup the 4 and do the same thing for the rest of the numbers if the product is greater than nine. Your answer will be 2268.

Expand 378 as (300+70+8) then multiply it 6. It will be (300 x 6)+(70 x 6)+(8 x 6)=

1800+420+48=2268

Which choice describes a question that could be answered by moving the decimal point 3 places to the right? A. dividing 14.09 by 103 B. dividing 14.09 by 102 C. multiplying 14.09 by 100 D. multiplying 14.09 by 1,000

Answers

D. Multiplying 14.09 by 1,000. 

At a class pizza party, each pizza ordered had 2/8 of the pizza left over after the party. In all, 1 1/2 pizzas were left over. How many pizzas were ordered?

Answers

2(2)/8(2)= 1/4  left out of each pizza
 1 1/2=3/2

3/2: 1/4= 3/2 X 4/1=12/2......12(2)/2(2)=6/1=6

What is the value of the following expression? 2×{6+[12÷(3+1)]}-1

Answers

First of all 3+1=4
Next divide 12 and 4 that equals 3
3+6 is equal to 9
9×2=18
Finally 18-1=17
My answer is 17
3+1=4
12/4=3
6+3=9
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Myra can fill 18 glasses with 2 container of ice tea. How many glasses can she fill with 3 container of tea?

Answers

Answer:

27

Step-by-step explanation:

first do 18/2 and then do 9x3 and you get 27

Final answer:

With the given ratio of 9 glasses per container, Myra can fill 27 glasses of iced tea by using 3 containers.

Explanation:

The subject of this question is ratio and proportion which falls under Mathematics. Based on the information given in the question, Myra can fill 18 glasses of iced tea with 2 containers. That's a ratio of 18 glasses to 2 containers, or simply put, 9 glasses per container (18 glasses ÷ 2 containers).

So when Myra tries to fill glasses with 3 containers of iced tea, we would just multiply the 'glasses per container' by the number of containers she is using. This calculated as (3 containers × 9 glasses/container) which equals 27 glasses. Hence, Myra can fill 27 glasses with 3 containers of tea.

Learn more about Ratio and Proportion here:

brainly.com/question/32002365

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. Teesha is in French Club. There are 10 freshman, 12 sophomores, 15 juniors, and 30 seniors in the club. The advisor is going to randomly choose one of the members of the club to be a guide for an important visitor. 1. 15/67
2. 22/67
3.37/67
4. 45/67

Answers

Teesha is in French Club:
=> 10 freshman
=>12 sophomores
=>15 juniors
=> 30 seniors in the club.
The advisor is going to randomly choose one ofthe members of the club to be a guide for an important visitor. 
Out of 4 groups, only 1 will be selected.
=> 10 freshman + 12 sophomores +15 juniors + 30 seniors = 67  students
=> 67 / 4 = 16.75
OR close to 
=> 15/67
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