J = Joan
a = amber
a = 2j - 2
j + a = 34
j + 2j - 2 = 34
3j - 2 = 34
+2 + 2
3j = 36
j = 12
j + a = 34
12 + a = 34
-12 -12
a = 22
Joan would be 12 years old and Amber would be 22 years old.
Answer:
Step-by-step explanation:
Let
Currently:
Two years ago
Required
H and B
We have:
Open bracket
Add 2 to both sides
Substitute
Collect like terms
Substitute in
Answer:
2.5 cm
Step-by-step explanation:
We see the diameter is 5cm
so the radius is half the diameter
5/2 = 2.5 cm
The 35% is 81.90 plus the 234. So your answer would be $315.90 is the original price. If you need me to explain it let me know :)