Answer:
72
Step-by-step explanation:
x in (-oo:+oo)
(x/4)/3 = 6 // - 6
(x/4)/3-6 = 0
1/12*x-6 = 0 // + 6
1/12*x = 6 // : 1/12
x = 6/1/12
x = 72
x = 72
Answer:
12 pencils
Step-by-step explanation:
let no. of pencils bought be x.
54 - 0.75x - 2.50 = 42.50
9 = 0.75x
x = 12
Topic: algebraic equations
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She got 45 questions correctly
Step 1 75/100= x/60
Step 2 75 * 60 = 4500
Step 3 4500/100=45
Answer is 45 questions answered correctly