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# Algebra and Geometry Equations Quiz

Created by
@TantalizingInequality

### Expand and simplify the following: 5p(p-4)-7(1-2p)

• 5p^2-6p-7 (correct)
• 5p^2+6p-7
• 5p^2-26p-7
• 5p^2+26p-7
• ### Derrick saved 50 and purchased z socks from EB games. Since Derrick is a long-time customer, EB games rewards him x in return. Determine a equation for his purhcases of socks.

• z= 50 + x
• 50 = z + x (correct)
• z - x = 50
• x = 50 + z
• ### Determine the equation of the line for Figure 3

• y = x
• y = x+100
• x+y =100 (correct)
• a linear equation but there is insufficient information for an equation
• ### The formula for simple interest is I = PRT/100. Determine the number of years that $2500 should be invested at 5% pa to earn 500 interest <p>4 years</p> Signup and view all the answers ### A doctor usually works 40 hours per week at$50/hr and is paid for overtime. In one particular week, the doctor had worked for 60 hours. Doctors receive a 20% increase in standard wage for working overtime. Determine the doctor’s weekly salary for the week he worked overtime.

<p>4500</p> Signup and view all the answers

### The mid point and distance between the points (3,6)& (5,8) is respectively:

<p>(4,7) &amp; 2.8</p> Signup and view all the answers

### Determine which of the following points lies on the curve: y = 100-x

<p>(38,62)</p> Signup and view all the answers

### In 2023, 42% of all Year 9 Churchie students attend opening weekend for the movie Oppenheimer , and 58% instead watched Barbie. Since then, 15% of those who decided to watch Oppenheimer cancelled at the last minute. At the same time, 15% of those who watched Barbie also decided to watch Oppenhiemer. Determine the percentage of students that watched Oppenhiemer on opening weekend

<p>40%</p> Signup and view all the answers

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