0.63x12= 7.5 so the answer is 7.5
If one third of the loaf was left and there is six pieces left you multiply 3×6=18
There was originally 18 slices of bread
Length of rectangle
Rectangle 1) 23m
Rectangle 2) 14yd
Width of rectangle
Rectangle 1) 36m
Rectangle 2) 3.5yd
An expressions is an equations but without the equal sign ( = ) and without the solution ( the answer)
The formula To find the area of a rectangle is
A = base * height
or
A = length * width
Rectangle’s area written in as an expression
Rectangle 1) 23 * 36
Rectangle 2) 14 * 3.5
To find the area, you multiply the numbers
23 * 36 = 828
14 * 3.5 = 49
Rectangle’s area written as a number
Rectangle 1) 828m
Rectangle 2) 49yd
B(t) = 5000 * 2^(-0.05t)
<span>2000 = 5000 * 2^(-0.05t) , div by 5000 </span>
<span>0.4 = 2^(-0.05t) , ln on both sides => </span>
<span>ln0.4 = (-0.05t)* ln2 </span>
<span>(ln0.4)/ln2) /(-0.05) = t </span>
<span>t = 26.43 </span>
<span>After 27 years</span>
