Answer:
Step-by-step explanation:
If there were 24 cookie, and 14 were left
the percentage of cookies eaten is:
we will do:
24/100=14/x
x=14*100/24=58.33%
2nd one
You can use Pythagoras theorem to calculate x:
12² + 14² = x²
144 + 196 = x²
x² = 340
x = √340 ≈ 18,44
6x+8=19x+2
6x-19x=-8+2
-13x=10
/-13x /-13x
x= -1.3 you divide -13x in both sides.
