A student thinks the sum of 4.3 and 8.4 is 12.7 because 4+8 is 12 and 3+4 is 7. The student then adds 3.7 and 2.6, then gets 5.13 because 3+2 is 5 and 6+7 is 13. Identify the mistake in the student's procedure and explain why the procedure won't always work.

Answers

Answer 1

Answer: The mistake is that when adding decimals, if the number is greater than 10 then you add one to the ones place and subtract ten from the decimal. So the answer should have been 6.3

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At the beach cleanup, Maya's group collected 14.8 pounds of trash on Saturday and 12.5 pounds on Sunday. Will's group collected the same total amount of trash as Maya's group but collected only 11.8 pounds on Saturday. HELP PEALSE!!!!!

How much trash did Will's group collect on Sunday?

A.
3.0 pounds

B.
12.5 pounds

C.
15.5 pounds

D.
27.3 pounds

Answers

To solve this all that we need to do is take 12.5+14.8=27.3 then take 27.3-11.8=15.5 so C is your answer Enjoy!=)

the answer is C, because you add 14.8 and 12.5, then subtract 11.8. the remaining number is the answer, 15.5

IM BEGGING PLEASE HELP I GIVE THANKS

Answers

Opposite angles are equal:

4y-8=79+y

4y-y=79+8

3y=87

y=87/3

y=29

an electrician can wire on average 4.5 houses in a week. how many months will it take her to wire houses if she wires the same number each week and figures on 4.5 weeks per month

Answers

I believe it would be 12 months. How i got this answer was by dividing 55 by 4.5.

Even though it is a very vague explanation as to how i got the answer, I hope this helps you.

The volume of a prism is 918 yd3What is the volume of this prism, measured in ft3

A.102
B.306
C.8262
D.24,786

Answers

Given:
volume of a prism : 918 yards³

Convert cubic yard to cubic feet

1 cubic yard is equal to 27 cubic feet.

Volume of a prism = 918 yards³ x 27 feet³/1yard
= 918*27 ft³
Volume of a prism= 24,786 ft³ Choice D.

D. 24,786 is right for sure

What is 1/5 of 40???????????

Answers

Answer:
8

Explanation:
To get a fraction of a number, we will simply multiply this fraction by the number.

In the given we want to find $(1)/(5)$ of 40.

This can be computed as follows:
$(1)/(5)$ of 40 = $(1)/(5)$ * 40

= $(40*1)/(5)$

= $(40)/(5)$

= 8

Hope this helps :)

After calculating the fraction (one-fifth) of 40, the answer is 8.

What is the fraction (one-fifth) of 40?

To calculate one-fifth of 40, we divide 40 by 5. When we divide 40 by 5, we get the result 8. Therefore, the fraction (one-fifth) of 40 is equal to 8.

Let's break it down further to understand the process.

One-fifth represents dividing a whole into five equal parts. When we divide 40 by 5, we are essentially splitting 40 into five equal parts. Each part will be the same size.

To divide 40 by 5, we start with the number 40 and divide it by 5.

40 ÷ 5 = 8

The result, 8, represents one-fifth of 40. This means that if you take 40 and divide it into five equal parts, each part will be 8.

Therefore, 1/5 of 40 is equal to 8.

Read more about fraction here: brainly.com/question/78672

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In the first session 40 student attended.Of these 40 students 60% were girls. How many girls attended the first session of swimming lessons?

Answers

24 girls

60% is 0.6
40 x 0.6 = 24

10% of 40 is 4.

4 x 6 = 24

There were 24 girls.

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