Question

statistics

1. looking at the list of numbers, find the mean, median, mode, range and standard

deviation of that list of numbers.
project scores
{10, 100, 25, 35, 98, 12, 98, 88, 99}
mean
62.7
mode
98
range
90
median
88
solving simple equations

1. a) solve for x: x - 9 = 16

+9 +9
b) solve for g: 8g = -64
8 8
x = 25
solving multi - step equations

1. a) solve for y: 2y + 4 = 60

×4
b) solve for x: \\( \frac { x - 8 } { 5 } = 10 \\)
charlene has a lemonade stand. she spent $31 building the stand and buying the
pplies. she made $350 in one day, after selling cups of lemonade for $3.00. what
uation represents the profit for the day? how many cups of lemonade did she sell?

Explanation:

Step1: Solve for y

Subtract 4 from both sides of the equation \(2y + 4 = 60\).
\(2y+4 - 4=60 - 4\)
\(2y = 56\)
Divide both sides by 2.
\(y=\frac{56}{2}=28\)

Step2: Solve for x

Multiply both sides of the equation \(\frac{x - 8}{5}=10\) by 5.
\(\frac{x - 8}{5}\times5=10\times5\)
\(x - 8 = 50\)
Add 8 to both sides.
\(x=50 + 8=58\)

Answer:

a) \(y = 28\)
b) \(x = 58\)