st + 3t = 6 for s
Subtract 3t to both sides
st + 3t - 3t = 6 - 3t
Simplify
st = 6 - 3t
Divide both sides by t
st/t = (6-3t)/3
simplify
s = 6/3 - 3t/3
s = 2 - t
Answer:
$1.25
Step-by-step explanation:
90 / 72 = the cost per student
90 / 72 = 1.25
Answer:

Step-by-step explanation:
we know that
The perimeter of rectangle is equal to

In this problem we have


substitute in the formula and solve for L

simplify


3 7/8 Converted into decimal equals 3.875
7/8 = 0.875 + 3
Answer:
11 (2c + 3d)
Step-by-step explanation:
Find the GCF (Greatest Common Factor)
Answer: 11
And then use 11 to factor out 22c + 33d