X+.8=21.6 21.6/.8=x x=27 So, in conclusion, 80% of 27 is 21.6
Subtract 4 from both sides
R/10 = 5 - 4
Simplify 5 - 4 to 1
R/10 = 1
Multiply both sides by 10
R = 1 × 10
Simplify 1 × 10 to 10
<u>R = 10</u>
Answer:
(I am assuming this is just approximation since there are no other numbers, just to be clear :))
Algebra: about 450 students
Geometry: about 250 students
Calculus: about 50 students
<span>-16 - w, when w = -23
-16 - (-43) = 27</span>
Answer:
d = 55 boxes of deluxe
s = 135 - 55 = 80 boxes of standard
Step-by-step explanation:
This is a system of equations.
Let s = number of standard boxes
d = number of deluxe boxes
s + d = 135 sold
7s + 13d = $1275
we can use substitution
s = 135 - d
7*(135 - d) + 13 d = 1275
945 - 7d + 13d = 1275
6d = 330
d = 55 boxes of deluxe
s = 135 - 55 = 80 boxes of standard