Answer:
150
Step-by-step explanation:
26.7 round to 30
4.8 rounds to 5
30x5 = 150
Answer:
$30
Step-by-step explanation:
All you do is subtract the 5 dollars that he spent from the 35 dollars he already had and you get $30!
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Dive your answer by three so 9.60/3 = 3.20 or £3.20
Answer:
It will take about 7.3 years for his money to triple.
Step-by-step explanation:
Identify the variables in the formula.
A = 150,000
P = 50,000
r = 0.15
t = ?
A = Pe^rt
Substitute the values into the formula.
150,000 = 50,000e^0.15*t
Solve for t. Divide each side by 50,000.
3 = e^0.15*t
Take the natural log of each side.
ln 3 = ln e^0.15*t
Use the power property and then simplify.
ln 3 = 0.15*t ln e
ln 3 = 0.15-t
Divide each side by 0.15.
(ln 3)
/(0.15) = t
Approximate the answer.
t ≈ 7.3
