Use distribution
-5t - 30 + 7t = 100
Combine like terms
2t - 30 = 100
Add 30 to both sides
2t = 130, t = 65
Solution: t = 65
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Hope this helps!!
So in 10 years, the population will double.
8 years is just before doubling to 6800.
If you consider 10 years to be 100% of the doubling time, 8 years is 80%.
And 80 as a decimal is 80/100 = 0.8
So the answer is 0.8 * 6800, simplify.
Hint:
Use distributive property, then combine like terms.
I think you've got it from there :)
If you need more help, just comment on this.
If you still are confused, then see below.
Answer:
-45-22i+(10-15i)(5+3i)
-5-22i+50+30i-75i-45i
112i-45
Answer:
Step-by-step explanation:
Subtract 8