Answer:
48 points
Step-by-step explanation:
24 points = 1 coin
48 points = 2 coins
Working out

Percentage= Difference/Original value x 100
Difference =4735-4049=686
P=686/4735
=0.1448... × 100
=14.5
Answer:
x = ±1
Step-by-step explanation:
Step 1: Define variables
f(x) = x² + 1
f(x) = 2
Step 2: Substitute
2 = x² + 1
Step 3: Solve for <em>x</em>
0 = x² - 1
0 = (x - 1)(x + 1)
x - 1 = 0
x = 1
x + 1 = 0
x = -1
∴ x = ±1
Divide by 10 to find how many tens he needs.
1200/10 = 120
Answer: He needs 120 tens