Answer:
hey i know this might not help the way you want it to but try using khan Academy these videos might be helpful
Step-by-step explanation:
Reasonable because the three items altogether cost about $40
Angles in a triangle add up to 180
126.7+ 19= 145.7
180-145.7= 34.3 <--- answer
Answer:
Step-by-step explanation:
Let the number = x
<u><em>2x - (x + 5) = 3 </em></u> Answer
Now Let's solve it.
2x - x - 5 = 3
x - 5 = 3
x = 8
Check
2*8 - (8 + 5)
16 - 13
3
which is exactly what the right hand sign is.
The way to solve this question is to essentially reverse the equation I used in the other answer.
I would solve this with some theoretical values. If you start with 3, how long would it take for it to triple, or reach 9.
the equation would look like 9 = 3(2)^t/6, note how the instead of 1/2 it is now 2 in the parenthesis, as it doubles every 6 hours rather than halves every amount of hours.
When placed into an algebra calculator, the answer should be about 9.5 hours
