New length = 3.5 x 8 = 28 cm
New width = 3.5 x 6 = 21 cm
Perimeter = 2(28) + 2(21) = 56 + 42 = 98 cm
Area = 28 x 21 = 588 square cm
Answer:
132 students
Step-by-step explanation:
100% means all of something, so 100% can also be written as 1.00
Since we need 55% of 240, we can multiply 240 by 0.55 and get 132.
Answer:
D. $53.76
Step-by-step explanation:
When calculating discounts and sales tax, you need to first change your percentages to decimals by dividing each by 100:
20%/100 = 0.2
5%/100 = 0.05
Since the shoes are at a 20% discount, you will only pay 80% of the original amount, or: $64.00 x 0.8 = $51.20
However, you also need to pay a 5% sales tax, in addition to the sales price, so you can take the discounted amount and multiply:
$51.20 x 1.05 = $53.76 total cost
Answer:
x = −1 ± √17
Hope this helps and have a nice day! :)
