math help please?

Question

can someone please help me with these question??


1. Meredith buys 21 feet of pipe insulation priced at $3.39 per foot. About how much does she pay for the pipe insulation?

2. The cost for new carpeting in Harry’s house was $631.14 in the living room, $716.28 for the bedroom and $294.63 for the bathroom. About what is the total cost?

3. Of the 155 orchestra members, 32.9% are boys. About how many are boys?

4. Find the answer to the following problem. Show all of your work and explain your answer. Sandra’s rent was 26% of her monthly income of $2,600. About how much is her rent for the month?

Answer 1

1. Take 21 times $3.39. ($71.19)

2. Add $631.14, $716.28, and $294.63. ($1,642.05)

3. Take .329 times 155. (50.995 = 51 boys)

4. Take $2,600 times .26. ($676 per month)

Because it says "about how many...", you need to round the numbers.

1. $70
2. $1,600
3. 50
4. $680

I hope that this helps you! If you need any more help or do not understand what I did, don't hesitate to message me. Good luck!

Answer 2

1. 3.39 / ft 21 ft was bought 3.39 x 21= $71.19

2. $631.14+ 716.28+ 294.63= $ 1,642.05

3. 155 members 32.9% boys thus 155 x .329=51 boys

4. monthly income is 2600 and rent is 26% thus 2600 x .26=
$676

Answer 3

1. 21 feet at $3.39 per foot is $71.19

2. $631.14 for the living room + $716.28 for the bedroom + $294.63 for the bathroom = $1642.05 total

3. 155 members * 32.9/100 (the number of boys per hundred members) = 50.995 boys (About 51 are boys.)

4. $2,600 monthly income * 26/100 (the dollars spent on rent per hundred dollars of monthly income) = $676.00 per month spent on rent

Good luck with your math!

Answer 4

1. $3.39 x 21ft = $71.19

2. $631.14 + $716.28 + $294.63 = $1642.05

3. $155 x 32.9% = 50.995/ round off to 51

4. 2600 x 26% = $676

Answer 5

1. multiply 3.39 by 21 and that equals $71.19
2.add together 631.14+716.28+294.63 and that equals $1 642 053.
3.
4. 10% of 2600 is 2.600 and if you need 20% percent multiply that by 2 which comes to 5.2. Then one percent of 2600 is .2600 and multiply that by 6 to get 6% which is 1.56 and to get 26% you add those two final numbers (1.56+5.2) to get 676.00 which means her rent each month is about $676.00.


so the answers are:
1.$71.79
2.1 642 053
3.?
4.$676.00

sorry,. i cant get number three but fot the other ones I am pretty sure I am right, haha.

hope i could help and merry christmas:)

Answer 6

1.) 20 x 4 = 80
2.) 630+720+300= 1650
3.) 30% of 150 = 45
4.) 26% is close to 25%. 1/4 of 2,600 is 750.

Answer 7

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Answer 8

1.21x3.39=71.19




2.631.14 + 716.28 + 294.63=1,642.05