Question

lesson
writing equations to model
relationships (part 1)
lets look at how equations can help us describe
relationships and constraints.
warm - up math talk: percent of 200
evaluate mentally.
1 25% of 200
2 12% of 200
3 8% of 200
4 p% of 200
1 a platonic relationship
these three figures are called platonic solids.
tetrahedron
cube
dodecahedron

Explanation:

Step1: Recall percentage - to - decimal conversion

To find a percentage of a number, convert the percentage to a decimal. For example, $25\%=\frac{25}{100}=0.25$.

Step2: Calculate 25% of 200

Multiply the decimal form of the percentage by 200. So, $0.25\times200 = 50$.

Step3: Convert 12% to decimal

$12\%=\frac{12}{100}=0.12$.

Step4: Calculate 12% of 200

$0.12\times200=24$.

Step5: Convert 8% to decimal

$8\%=\frac{8}{100}=0.08$.

Step6: Calculate 8% of 200

$0.08\times200 = 16$.

Step7: Convert p% to decimal

$p\%=\frac{p}{100}$.

Step8: Calculate p% of 200

$\frac{p}{100}\times200 = 2p$.

Answer:

1. 50
2. 24
3. 16
4. $2p$