mine9226
07.04.2020 •
Mathematics
By 1;00 pm a total of 40 boxes has been unloaded from a delivery truck. by 3:30 pm a total of 65 boxes has been unloaded from the same truck. if boxes are unloaded from the truck at a constant rate, what is the total number of boxes that will have been unloaded from the truck by 7:00pm
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Ответ:
100 boxes
Step-by-step explanation:
Time difference between 3:30pm and 1:00 pm is 2 hours 30 mins or 2.5 hours.
Boxes loaded between this duration are 65-40=25 boxes
Rate of loading boxes are 24/2.5=10 boxes per hour.
Time difference between 7pm and 1 pm is 7-1=6 hours
Initial boxes unloaded (by 1 pm)= 40 boxes
For 6 hours, using the rate of 10 boxes per hour, unloaded boxes will be 6*10=60 boxes
Total boxes will be 60+40=100 boxes
By 7pm of the same day, 100 boxes will be unloaded.
Ответ:
$124.86
Step-by-step explanation:
We can find the sale price by multiplying $129.99 by (1.00 - 0.15), or 0.85, which results in $110.49.
Similarly, the final new price is (1 + 0.13)($110.49) = $124.86.
This breaks down to 1.00($110.49) = $110.49 (the sale price before tax) plus 0.13($110.49) = $14.36 (the tax on $110.49). Adding $110.49 and $14.36 together results in $124.86.