The probabilityof answering one question correctly is 1/3. To do this two times, the probability is 1/3*1/3 = 1/9 ≈ 11%
Answer:
62 miles per hour
Step-by-step explanation:
620mile/10hrs
62miles/hr
62 miles per hour
Answer:
It is D. (x + 1)^2 + (y - 3)^2 = 16.
Step-by-step explanation:
The general equation of a circle is
(x - h)^2 + (y - k)^2 = r^2 where the center is (h, k) and the radius is r.
So substituting the given values the required equation is:
(x + 1)^2 + (y - 3)^2 = 4^2.
98.43 = 98 43/100 = (98 * 100 + 43) / 100 = 9843/100
98 is ur whole number....now look at ur numbers to the right of the decimal....what place is ur 3 in ? The 4 is in the tenths place....the 3 is in the hundredths place....so that makes it 43/100...now include ur whole number...so its 98 43/100...now if u don't want a mixed number...change it to an improper fraction which would be 9843/100.
So to start off with this problem, let us call the amount invested in Plan A and B as a and b respectively.
So equation 1: a + b = 250,000
Next, we need to get an equation which is equal to 10,000. So the interest rate in plan a + interest rate in plan b would be equal to 10,000. Rewriting this sentence will give us:
Equation 2: .028a + 0.078b = 10,000
Rewrite the first equation into a = 250,000 - b, and then plug the value into equation 2.
.028(250,000 - b) + 0.078b = 10,000
7,000 - 0.028b + 0.078b = 10,000
-0.028b + 0.078b = 10,000 - 7,000
0.05b = 3,000
b = $60000 amount invested at 2.8% while
250,000 - 60,000 = $190,000 is the amount invested at 7.8%
