Answer: 3/4
Step-by-step explanation:
Answer:
Step-by-step explanation:
15s-100=350
the last one
IDK if you need this s=30
The number will be itself when multiplied by 1.
The sum of twice and half the original number is 1, so the number is
2n +0.5n = 1
2.5n = 1
n = 1/2.5 = 0.4
The original number is 2/5.