Answer:
Justin bought the item for $39.
Step-by-step explanation:
Given that an item is regularly priced at $ 60, but Justin bought it on sale for 35% off the regular price, in order to determine how much did Justin pay, the following calculation must be performed:
60 - (60 x 0.35) = X
60 - 21 = X
39 = X
Thus, Justin bought the item for $39, paying only 65% of the regular price.
$78 without tax multiplied by 1.25 or 25% is $97.5 sales tax makes them $107.25
Answer:
40 cm
Step-by-step explanation:
Step one:
Given data
Diagonal = 50cm
If the length on one of the sides is 30cm
Then applying Pythagoras theorem we can find the other side as
Step two:
![d^2= l^2+w^2\\\\50^2= 30^2+w^2\\\\2500=900+w^2\\\\2500-900= w^2\\\\1600=w^2\\\\](https://tex.z-dn.net/?f=d%5E2%3D%20l%5E2%2Bw%5E2%5C%5C%5C%5C50%5E2%3D%2030%5E2%2Bw%5E2%5C%5C%5C%5C2500%3D900%2Bw%5E2%5C%5C%5C%5C2500-900%3D%20w%5E2%5C%5C%5C%5C1600%3Dw%5E2%5C%5C%5C%5C)
square both sides we have
w= √1600
w= 40 cm
Answer:
-1.5
Step-by-step explanation:
5! = 5 *4*3*2*1 = 120
2! = 2*1 = 2
120 +2 = 122