Answer:
nt ooooo
o
Step-by-step explanation:
1/3 * 420 = amount of t-shirts sold in the morning
1/3 * 420 = 420/3 = 140 t-shirts
140 t-shirts were sold, so remaining is 420 - 140
420 - 140 = 280 remaining t-shirts
4/7 * 280 = amount of t-shirts sold in the afternoon
4/7 * 280 = (280/7) * 4 = 40 * 4 = 160 t-shirts
160 t-shirts were sold, so remaining is 280 - 160
the remaining t-shirts = 120 t-shirts
120 t-shirts are left to sell at the end of the day
If you would like to know how much is $45 marked down by 22%, you can calculate this using the following steps:
22% of $45 = 22/100 * 45 = 99/10 = $9.9
$45 - $9.9 = $35.1
The correct result would be $35.1.
9514 1404 393
Answer:
√21
Step-by-step explanation:
The Pythagorean theorem tells you ...
a^2 +b^2 = c^2 . . . . . for legs a, b and hypotenuse c
a^2 +2^2 = 5^2 . . . . . for leg 2 and hypotenuse 5
a^2 = 25 -4 = 21 . . . . subtract 2^2
a = √21
The other leg has length √21.
sqrt (3) * sqrt(16) = 4sqrt(3) = irrational
2sqrt(9) *sqrt(4) = 6*2 = 12 rational
7 sqrt(3)* sqrt(3) = 7*3 =21 rational
sqrt(5) * sqrt(5) = 5 rational