So megan is four years younger than her aunt
m+4=a
or
m=a-4
the sum of their ages is at least 40
m+a<u>></u>40
subsitute a-4 for m
a-4+a<u /><u>></u>40
combine like terms
2a-4<u>></u>40
the answer is the third from the top
Initial amount: s.
Then, after having spent 7% of his savings, the amount left is 0.93s = <span>£771.90.
Dividing both sides by 0.93, we get s = </span><span>£830.
Check: What is 7% of </span>£830? 0.07(£830) = £58.1. If we subtract that from £830, do we get <span>£771.90? Try it.</span>
3m-4n-8 as a sum is: 3m + (-4n) + (-8)
Writing the equation as a sum helps identify the terms of the expression because it makes the terms visibly clearer to make out, so it can help prevent mistakes as well. The terms are the negative (-) and the positive (+). We now have a better visual of what the term of each number is.
Answer:
83 m
Step-by-step explanation:
The computation of the length of the wire is shown below:
Let us assume the length of the wire be x
Given that
There is 35m from the base of the tower
And, the angle with the ground is 65 degree
So, the length of the wire is
cos 65 = 35 ÷ x
x = 35 ÷ cos 65
= 83 m
25 because 25x5=125. So there would be 25 books on each shelf. Hope this helps! :)