8 can go into 66 about 8 times. It doesn't come out as a whole number. 66 ÷ 8 is 8.25 to be more exact.
Answer: the ordinary interest is $6.5625
Step-by-step explanation:
In calculating ordinary interest, the number of days in a month is considered to be 360 days. We would apply the formula for determining simple interest which is expressed as
I = PRT/100
Where
I represents interest paid on the loan.
P represents the principal or amount taken as loan
R represents interest rate
T represents the duration of the loan in years.
From the information given,
P = $420
R = 6.25%
T = 90 days = 90/360 = 0.25 day
I = (420 × 6.25 × 0.25)/100
= $6.5625
Answer:
boy im on winter break
Step-by-step explanation:
Step-by-step explanation:
a) The slope formula is given by
m = (y2 - y1)/(x2 - x1)
Let P1(7, 5) and P2(21, 15)
m = (15 - 5)/(21 -7)
= 10/14
= 5/7
b) Let's see if the slope is only a third of the one found in part (a) or m = 5/21. Let P1(0, 0) and P2(21, 5).
m = (5 -0)/(21 - 0)
= 5/21
Indeed, the slope is only a third of part (a), as we predicted.
Let
r = Sam's jogging rate
r+40 = train's rate
The rate refers to a speed of any moving body.
Know first the relationship of distance, time, and rate. The time is the distance divided by the rate.
By analyzing the problem, the time for Sam and the time for train have the total time of 30 minutes or 1/2 hours. Expressing it into an equation yields
t(Sam) + t(train) = 1/2 hours
The distance covered by Sam is 3 km, and the distance covered by train is 5 km. So
3/s + 5/(s+40) = 1/2
Solving for s,
3(s+40) + 5s = (1/2)*(s(s+40))
3s + 120 + 5s = (1/2)s<span>² + 20s
8s + 120 = (1/2)s</span><span>² + 20s
(1/2)s</span><span>² + 12s - 120 = 0
The solution is turned out into a quadratic equation. If you know the quadratic formula, you get for x, for instance the two values of x are
s = 7.59 and s = -31.59
The value s = -31.59 is meaningless. Therefore Sam's jogging rate is 7.59 km/hr.</span>
