Multiply 9.27 and 8.3.(1 point)
Responses
7.6941
10.197
76.941
769.41
The correct answer is 76.941.
Multiply and find an estimate to check for the reasonable correct place value for the decimal point for 12.3 × 4.8 = 59.04
.(1 point)
Responses
123 ⋅ 48 = 5,904
Yes, the decimal point is in the correct place.
12 ⋅ 4 = 48
No, the decimal point is not in the correct place.
12 ⋅ 5 = 60
Yes, the decimal point is in the correct place.
123 ⋅ 48 = 5,904
No, the decimal point is not in the correct place.
The correct response is:
12 ⋅ 5 = 60
Yes, the decimal point is in the correct place.
Solve the following multi-step problem. Melanie drives a large tractor trailer for a delivery company. She needs to fill her gas tank partway through her route. She put 110.85 gallons of gas in the truck. The gas costs $2.98 per gallon. She last filled her tank two days ago at a cost of $257.82. How much more did she spend on gas today?(1 point)
Responses
$172.51
$71.51
$72.51
She spent less today than 2 days ago.
To find how much more Melanie spent on gas today compared to two days ago, we must subtract the cost of her last tank from the cost of her current tank.
Cost of gas today = (110.85 gallons) * ($2.98 per gallon) = $330.393
Difference in cost = Cost of gas today - Cost of last tank = $330.393 - $257.82 = $72.573
Rounded to the nearest cent, Melanie spent $72.57 more on gas today.
Therefore, the correct response is $72.57
Jonathan is an interior designer. He is working on a project that requires new carpet in an area that is 567.5 square feet. He has picked out carpet that is $7.98 per square foot. His budget for carpet is $4,250. Is he over or under the budgeted amount? By how much?(1 point)
Responses
He is over budget by $378.65.
He is over budget by $288.65.
He is over the budget by $278.65.
He is under budget by $278.65.
To determine if Jonathan is over or under the budgeted amount and by how much, we need to calculate the cost of the carpet for the given area and then compare it to the budgeted amount.
Cost of carpet = (567.5 square feet) * ($7.98 per square foot) = $4538.35
To find if he is over or under the budgeted amount, we subtract the budgeted amount from the cost of the carpet:
Difference = Cost of carpet - Budgeted amount = $4538.35 - $4250 = $288.35
Jonathan is over budget by $288.35.
Therefore, the correct response is: He is over budget by $288.65.