Answer:
81 pencils
Step-by-step explanation:
1. Set up variables
Pencils = p
notebooks= n
2. Set up a system of equations
p+n= 135 (The amount of supplies bought)
1.75n +0.35p = 122.85 (Equation for the cost)
3. Solve the system of equations (I'll use substitution)
a)p= 135-n (I just rearranged it)
1.75n + 0.35p= 122.85
b) Substitute the first equation into the second)
1.75n + 0.35(135-n) = 122.85
c) Solve!
1.75n + 47.25 - 0.35n = 122.85
1.4n = 75.6
n= 54
Serena bought 54 notebooks!
4. Substitute the number of notebooks into the first equation
p +n = 135
p + 54= 135
p = 81
Serena bought 81 pencils!!!
I hope this helps!!!!
For students who took the FSA Geometry EOC Assessment in the 2014–15 school year or in 2016 prior to the adoption of passing scores, the alternate passing score is 492, which corresponds to the passing score of 396 for the Next Generation Sunshine State Standards (NGSSS) Geometry EOC Assessment
5 Ways to prepare for the EOC Mathematics Exam
1. Review vocabulary.
2. Meta-cognitive exercise #1: Play to your strengths and be aware of your weaknesses.
3. Practice manipulating the calculator.
4. Familiarize yourself with the test's structure.
5. Last, but not least, meta-cognitive exercise #2: Practice problem-solving strategies.
Answer:
r=8
Step-by-step explanation:
45=6r-3
48=6r
r=8
Answer: y+1=-2(x-1)
Step-by-step explanation:
The point-slope formula is 
. Since we know the coordinate and slope, we can directly plug them in.
