Answer:
The smallest amount is
Step-by-step explanation:
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above
solve for P
Round to the nearest pound she can invest
The smallest amount is
144.4 is the answer when rounded of to the nearest tenth(1/10 or 0.1)
Answer:
x = 115
Step-by-step explanation:
Your working's actually right haha you just need to further evaluate that. The two angles do add up to 180°.
x + x - 50 = 180
2x - 50 = 180
Now, we can shift the (-50) to the right-hand side of the equation so that we can find out how much 2x is worth. (-50) would turn to +50 when it shifts.
2x = 180 + 50
= 230
We can find x now.
x = 230 ÷ 2
x = 115
Answer:
a) 1680
<em>The number of ways to listen to four CDs from a selection of 8 CDs = 1680</em>
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given data the number of CD' s n = 8
<em>We have to selected '4' CD' s from total '8' CD's</em>
<em>By using permutations </em>
<em>The number of ways to listen to four CDs from a selection of 8 CDs.</em>
<em> = </em><em> </em>
<em> we know that </em>
<em>The number of ways to listen to four CDs from a selection of 8 CDs = 1680</em>
Answer:
16.8
Step-by-step explanation:
16.8
X/7=12/5
5x=84
X=16.8