Answer:
8h
Step-by-step explanation:
basically your supposed to combine all of the H's. The numbers are how many there are. Just add the numbers with the same letters, and then stick the letter next to it.
2+2+4= 8
h+h+h= h
8h
Have a good day!! Be tiger fierce!!
Answer:
y = 1/4x - 3
Step-by-step explanation:
change slope from decimal to fraction form
Answer:
-3x + 3y - 6
Step-by-step explanation:
2x + 3y - 4 - (5x + 2)
open brackets by using - sign to multiply
2x + 3y - 4 - 5x - 2
collect like terms
2x - 5x + 3y - 4 - 2
-3x + 3y - 6
Let's say each row has x desks and there are y rows.
We then know that x*y =25
We also know that x*2-5=y (number number of rows is five less than twice the number of desks in each row)
So we substitute: x*(x*2-5)=25
putting numbers out of the brackets:
2x*x-5x=25
2x*x-5x-25=0
(2x+5)(x-5)=0 (this bracketing is true: you can check it by expanding it:
2x*x-10x+5x-25
So that means that either x=-2.5which can't be : there can't be a fractional number of benches,
or x=5
so each row has 5 desks and there are 2*5-5 rows, or 5 rows.
