299.95×0.25=74.99
299.95−74.99=224.96
21.59×12=259.08
100*(259.08 - 224.96)/224.96 = 15.2%
Answer:
83
Step-by-step explanation:
form 2 equations(1). 2(x+y)=22. (2)xy=24,then solve simultaneously
Midpoint of line AD = (-7+1) ÷ 2
= -6 ÷ 2
= -3
The midpoint of AD is -3.
Answer:
D :D
Step-by-step explanation:
-2x+7=13
-2x=-20
10
Answer:
Jack = 48 years old , Lac = 12 years old
Step-by-step explanation:
Jack = 4Lacy
(Jack - 4) + (Lacy - 4) = 52
Now, substitute.
4Lacy - 4 + Lacy - 4 = 52
5Lacy = 60
Lacy = 60/5 = 12
Jack =4Lacy
=4(12)
=48
