1hr/3600sec=15hr/x
(3600sec)(15hr)=(1hr)x
x=54000seconds
15 hours is 54000 seconds
$480 = x(20) + y(8)
where x+y=30
20 Hard covers = $400
10 Paper Backs = $80
80 + 400 = 480
If we're looking for the type, it would be a right isosceles triangle.
Answer:
The expression 40X represent the number of pages she read during X nights.
Step-by-step explanation:
Given : Tatiana read 40 pages of her book every single night
Let Tatiana read for X number of nights.
We have to write an expression that represent the number of pages she read during X nights.
The number of pages she read during X nights = number of pages Tatiana read every night × number of nights she spend
The number of pages she read during X nights = 40X
Thus, The expression 40X represent the number of pages she read during X nights.