£30
This is because if she has put 40% in to savings she has 60% left. This 60% is 15 + 3 (the money she spent at the movies and the money she has left) = £18
So 60% : £18
10% : £3 (divide by 6)
100% : £30 (multiply by 100)
90°+b+b =180
90°+ 2b=180
2b=180-90
2b= 90
<u>2</u><u>b</u><u>=</u><u>9</u><u>0</u>
<u>2</u> = 2
b=45°
ave tried I don't know if its correct
Answer: In both the case amount of interest is paid are:
1) $9000
2) $10146.76
Explanation:
Since we have given that
Principle amount = $30000
Interest rate = 6%
Number of years = 5 years
we'll use " Simple interest " first,
As we know the formula for " Simple Interest ":

Now, we'll do it by "Compound Interest "

So,

Hence in both the case amount of interest is paid are:
1) $9000
2) $10146.76
Okay. I'll use a formula that my math teacher taught me.
3400(1-0.07)^15
3400(0.93)^15
3400(0.33670086205)
1144.78293098 ( which rounds to about 1145 square km )