With one digit you can only make three numbers, 2, 5, and 8.
With two digits, _ _ there are 3 possibilities for the first digit and 2 in the second totaling 3*2 = 6 possibilities.
With three digits, _ _ _, there are 3 possibles in the first digit, 2 in the second and only 1 in the last. 3*2*1 = 6
Now we add all of the possibilities - 3+6+6 = 15.
Your final answer should be 15 numbers. Hope this helps!
Answer:
All real numbers are solutions!
Step-by-step explanation:
Let's solve your equation step-by-step.
5x+4=9+5(x−1)
Step 1: Simplify both sides of the equation.
5x+4=9+5(x−1)
5x+4=9+(5)(x)+(5)(−1)(Distribute)
5x+4=9+5x+−5
5x+4=(5x)+(9+−5)(Combine Like Terms)
5x+4=5x+4
5x+4=5x+4
Step 2: Subtract 5x from both sides.
5x+4−5x=5x+4−5x
4=4
Step 3: Subtract 4 from both sides.
4−4=4−4
0=0
Percentages are really just fractions out of 100. So 45% is really just 45/100. If you want to find the lowest fractions, you have to break each number up into prime factors and see which overlap. So:
45 = 9x5
= 3 x 3 x 5
100 = 2 x 50
= 2 x 5 x 10
= 2 x 5 x 2 x 5
So 45/100 = 3x3x5/2x2x5x5
Now because there's a 5 on both sides, we can cancel down. If we do, that leaves us with
3x3/2x2x5
Which is 9/20
