Answer:
1, -1
Step-by-step explanation:
a) The number when 40% of the number is 10
Step 1) Set up a proportion
Proportion: percent / 100 = x / number
In context of the problem, the proportion is: 40 / 100 = 10 / number
Step 2) Cross-multiply and solve
100 x 10 = 40 x N
1000 = 40N
N = 25
Answer: The number is 25
Answer:
Step-by-step explanation:
Lettheunknown number bex
CrossMultiply
Divide both sides of the equation by40
Simplify
1. 5-2x²-6x
2. (x+3) (x+4)=0
52.
80.
96
your answer sould be the last option (D) 96