# Algebra and Equations

## Quiz by Molly Edmonds

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- Q1
Match each expression to its reduced form

Users link answersLinking300s - Q2
A goldsmith melted a gold bar weighing 3 kg with 80 % purity, along with another gold bar weighing 1kg. The resulting mixture is 67 % pure. What was the purity of the second bar?

Users enter free textType an Answer300s - Q3
A car takes 5 hours to travel from A to B. A truck left at the same time and is travelling from B to A. It takes 2 hours and 55 minutes for the truck to cross paths with the car. How long will the truck’s full journey take?

Users enter free textType an Answer300s - Q4
Solve this equation: 1 = 3 – 4x

x = 1

x = $\backslash frac\{1\}\{2\}$

x = 3

x = $\backslash frac\{2\}\{3\}$

120s - Q5
Solve: (2x + 1)

^{2}= 0x = -$\backslash frac\{1\}\{2\}$

x = $\backslash frac\{1\}\{2\}$

x = -2x

^{2}x = 3x

^{2}120s - Q6
Ian is 25 years younger than his father. In 10 years, his father’s age will be double Ian’s age. How old are they?

Users enter free textType an Answer120s - Q7Users enter free textType an Answer300s
- Q8
I thought I had just enough money to buy 8 movie tickets, but the price is €4 more expensive than I thought. Now, I can only buy 5 tickets and I have €7 left. How much does one ticket cost?

Users enter free textType an Answer30s