Answer:
He would worth $ 635.62 ( approx )
Step-by-step explanation:
Since, the amount compounded continuously,
Where, P is the principal amount,
R is the rate per period,
t is the number of periods,
Here, P = $ 500,
r = 6 % = 0.06,
t = 4 years,
By substituting the values,
The amount after 4 years would be,
Answer: 40 + 0.21t
If t is the number of texts last month and the initial fee for each month is $40 then you will have the expression 40+0.21t
the answer is -3
D. x + 10 pence
Since the pen costs 10 pence more than the ruler, we need to add 10 to x.
0.9938
Let mean blood pressure be = x
Pr ( x < 119 ) can be found using ' z value ' = ( x - u ) ÷ ( s / √n ) ; where x = 119 , u = mean = 117 , n = no. of sample items = 144 , s = standard deviation = 9.6
z = (119 - 117) ÷ (9.6 / 144) = -2 ÷ (9.6 / 12) = -2 / 0.8 → z = 2.5
Pr (x < 119) = P (z < 2.5)
P = 0.9938