Answer:
8.95
Step-by-step explanation:
here we are going to use pythagoras theorem
a² +b² =c²
the vertical can be taken as a and horizontal as b
4² +8²=c²
this is the same as
c²= 4²+ 8²
c²= 16+ 64
c²=80
to get rid of the square we shall put both sides under a root
c = 8.95
<span>3/4(4c+16)=2c+9
We simplify the equation to the form, which is simple to understand
<span>3/4(4c+16)=2c+9
Reorder the terms in parentheses
<span>+(+3c+12)=2c+9
Remove unnecessary parentheses
<span>+3c+12=+2c+9
We move all terms containing c to the left and all other terms to the right.
<span>+3c-2c=+9-12
We simplify left and right side of the equation.
<span>+1c=-3
We divide both sides of the equation by 1 to get c.
<span>c=-3
Hope this helped! :)
</span></span></span></span></span></span></span>
Step-by-step explanation:
2/3 lost is 1/3 kept
2/3 of the 1/3 kept is 2/9 lost
1/3 x - 2/9 x = 4
3/9 x - 2/9 x = 4
1/9 x = 4
x = 36
First she lost 2/3 of 36, which is 24. She had 12 left. Then she lost 2/3 of 12 which is 8. She had 4 left.
The answer to your question is 6 percent because you have to subtract
