Answer:
Step-by-step explanation:
Answer: 3^2 = 1/9
3^0 = 1
3^1 = 3
3^3 = 27
3/20 = x/400,
cross multiply
so 20x = 3(400)
20x = 1200
x = 60
Answer:
8 Hours
Step-by-step explanation:
So, if we know that 12 exams are graded in 2 hours. Then we just divide 48 by 12.
It would take 8 hours to grade 48 exams.
<u>Solution</u><u>:</u> 9:x = x:4
⇛9/x = x/4
By doing cross multiplication, we get
⇛9(4) = x(x)
⇛36 = x²
⇛x² = 36
⇛x = √(36)
⇛x = √(6*6)
∴ x = 6 Ans.
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Answer:
9 times
Step-by-step explanation:
first you do 14 - 2.75 which equals 11.25. you divide that number by 1.25 which equals 9 in total, getting you your answer