joe correctly answered 70% of the questions on a test. there were 50 questions. how many questions did joe answer correctly?
Answer:
NO
Step-by-step explanation:
Answer:
Step-by-step explanation:
A direct variation is defined as when two numbers change but one is always a multiple of the other or if they always have a constant ratio.
$974.83
$973.38
$403.43
Compound Interest can be defined as the interest that is accumulated on a particular sum of money or investment after a given period of time.
The investment will be worth $974.83 in 10 years.
The formula to solve for the amount an investment will be worth if it is compounded continuously is given as:
A = Pe^rt
P = Principal = $535
R = Interest rate = 10%
T = Time in years = 10 years
First, convert R as a percent to r as a decimal
r = R/100
r = 6/100
r = 0.06 rate per year,
Then solve the equation for A
A = Pe^rt
A = 535(2.71828)^(0.06 x10)
A = $974.83
Therefore, the investment will be worth $974.83 in 10 years.
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Answer:
The total amount after 2 years of Joann's investment at a rate of 6% compounded annually is US$ 48.314.80 (rounded to the nearest cent)
Step-by-step explanation:
1. Let's review the data given to us for answering the question:
Investment amount = US$ 43,000
Duration of the investment = 2 years
Annual interest rate = 6% compounded annually
2. Let's find the future value of this investment after 2 years, using the following formula:
FV = PV * (1 + r) ⁿ
PV = Investment = US$ 43,000
number of periods (n) = 2 (2 years compounded annually)
rate (r) = 6% = 0.06
Replacing with the real values, we have:
FV = 43,000 * (1 + 0.06) ²
FV = 43,000 * (1.06) ²
FV = 43,000 * 1.1236
FV = US$ 48.314.80
1. x = 4
2. x = 3
3. x = 2 and x = -3
Step-by-step explanation:
solution 1
= 4
or, 3x+4 = 16 ( by squaring both sides)
or, 3x = 16 - 4
or, 3x = 12
or, x = 12/3
=4
solution 2
(x+5)^(2/3) = 4
or, (x+5) = 4^(3/2) ( by the rule of index)
or, x+5 = 2^3
or, x + 5 = 8
or, x = 8 - 5 = 3
solution 3
- x = 1
or, = x+1
or, x + 7 = (x+1)^2 (squaring both sides)
or, x + 7 = + 2x +1
or, + x - 6 = 0
or, + 3x - 2x - 6 = 0 ( by middle term factor method)
or, (x+3) (x -2) = 0
or, x= -3 and x = 2