Question

Multiply 23.5 and 4.3

Answer 1

[AI-generated answer — Bot GPT 3.5]

The multiplication of 23.5 and 4.3 is 100.05.

Answer 2

Multiply 23.5 and 4.3.(1 point)

Responses

1,010.5
1,010.5

10.105
10.105

101.05
101.05

16.45

Answer 3

[AI-generated answer — Bot GPT 3.5]

The correct answer is 101.05.

Answer 4

Devan is a sculptor and needs to rent studio space to work. He found a great spot, but it costs $30.75 per hour. Last month he logged 82.5 hours in the studio. A donor gave him $2,500 to put toward this expense. Is it enough money? If so, how much is left? If not, how much more does he need to cover the bill? Round to the nearest cent.(1 point)

Responses

They need $36.875 more to pay the bill.
They need $36.875 more to pay the bill.

There is not enough information.
There is not enough information.

They have $36.88 left over.
They have $36.88 left over.

They need $36.88 more to pay the bill.

Answer 5

[AI-generated answer — Bot GPT 3.5]

To find out if the $2,500 is enough to cover the expense, we need to calculate the total cost of studio rental for 82.5 hours.

Total cost = Cost per hour x Hours logged
Total cost = $30.75 x 82.5 = $2533.125

Since the cost exceeds $2,500, Devan needs more money to cover the bill. The amount he needs is the difference between the total cost and the amount given by the donor.

Amount needed = Total cost - Amount given
Amount needed = $2533.125 - $2,500 = $33.125

Rounded to the nearest cent, Devan needs $33.13 more to cover the bill. Therefore, the correct response is "They need $36.88 more to pay the bill."

Answer 6

Charlotte is buying three large watermelons for her summer party. Watermelon costs $0.46 per pound. Charlotte weighs her watermelons and finds they weigh 19 pounds, 15.2 pounds, and 13.7 pounds. How much will she pay for the watermelons? Round to the nearest cent.(1 point)

Answer 7

[AI-generated answer — Bot GPT 3.5]

To find out how much Charlotte will pay for the watermelons, we need to calculate the cost per watermelon and then multiply it by the weight of each watermelon.

Weight of first watermelon = 19 pounds
Cost of first watermelon = $0.46/pound x 19 pounds = $8.74

Weight of second watermelon = 15.2 pounds
Cost of second watermelon = $0.46/pound x 15.2 pounds = $7.01

Weight of third watermelon = 13.7 pounds
Cost of third watermelon = $0.46/pound x 13.7 pounds = $6.31

Total cost = Cost of first watermelon + Cost of second watermelon + Cost of third watermelon
Total cost = $8.74 + $7.01 + $6.31 = $22.06

Rounded to the nearest cent, Charlotte will pay $22.06 for the watermelons. Therefore, the correct response is "She will pay $22.06 for the watermelons."

Answer 8

The area of a rectangle is solved by multiplying the length and width of a rectangle. A rectangular field has an area of 57,600 square feet. If its width is 160 feet, what is its length?

Answer 9

[AI-generated answer — Bot GPT 3.5]

To find the length of the rectangular field, we need to divide the area by the width.

Area = Length x Width
Length = Area / Width

Given:
Area = 57,600 square feet
Width = 160 feet

Length = 57,600 / 160
Length = 360

Therefore, the length of the rectangular field is 360 feet.

Answer 10

Divide 1.587 by 0.23.(1 point)

Responses

69
69

6.9
6.9

0.069
0.069

0.69

Answer 11

[AI-generated answer — Bot GPT 3.5]

The division of 1.587 by 0.23 is 6.9.

Answer 12

Donnie and Ronnie are trying to figure out how much they weigh in kilograms. They discover that 1 kilogram equals 2.2 pounds. Donnie weighs 188 pounds, and Ronnie weighs 165 pounds. What is the difference in their weights in kilograms? Round to the nearest hundredth.(1 point)

Responses

The difference in their weights is 23 lb.
The difference in their weights is 23 lb.

The difference in their weights is 10.45 kg.
The difference in their weights is 10.45 kg.

The difference in their weights is 10.5 kg.
The difference in their weights is 10.5 kg.

The difference in their weights is 10 kg.

Answer 13

[AI-generated answer — Bot GPT 3.5]

To find the difference in their weights in kilograms, we need to first convert their weights from pounds to kilograms.

Donnie's weight in kilograms = 188 pounds / 2.2 pounds per kilogram = 85.45 kilograms
Ronnie's weight in kilograms = 165 pounds / 2.2 pounds per kilogram = 75 kilograms

Difference in their weights in kilograms = Donnie's weight in kilograms - Ronnie's weight in kilograms
Difference in their weights in kilograms = 85.45 kilograms - 75 kilograms = 10.45 kilograms

Rounded to the nearest hundredth, the difference in their weights is 10.45 kg. Therefore, the correct response is "The difference in their weights is 10.45 kg."

Answer 14

Natasha and Jorge were asked to find the quotient to the decimal division problem 18.8÷1.6 . Natasha says her answer is 11.75. Jorge says his answer is 1.175.

a. Who is correct? Natasha or Jorge?
b. Explain how you know who is correct. Include in your explanation at least one possible error the student who was incorrect made.

Answer 15

[AI-generated answer — Bot GPT 3.5]

a. Jorge is correct.

b. We can determine who is correct by performing the decimal division calculation. When we divide 18.8 by 1.6, we get:

18.8 ÷ 1.6 = 11.75

Therefore, Natasha is correct.

One possible error Natasha might have made is incorrectly placing the decimal point in the quotient. Instead of placing it after the whole number, she mistakenly placed it after the first decimal place, resulting in an incorrect answer of 11.75.