Find
using Pythagorean Theorem,
.
.
.
Hope this helps.
Answer:
20
Step-by-step explanation:
x = price
y = number of keyboard
xy = 540
(x-2)(y+3) = 540
x = 540/y
==> x = 20
==> y = 27
Answer:
144°
Step-by-step explanation:
Hope this helps :)
Answer:
150s or 2 min and 30 s
Step-by-step explanation:
20 facts = 1 min
10 facts = 30s
50 facts = ? min
50 / 10 = 5
30 * 5 = 150s
150s = 2 min and 30 s