Answer:
x=18-2/5y
y=-5/2x+45
Step-by-step explanation:
5x+2y=90
Nosotros queremos resolver para x o y
5x=90-2y
x=18-2/5y
o
2y=90-5x
y=-5/2x+45
Answer:
204 in^3
Step-by-step explanation:
The volume of the base square is V=lwh.
When we substitute our givens, it becomes V=6(4)(2). This equals 48 in^3.
The volume of the triangle is V=.5lwh.
When we substitute our givens, it becomes V=.5(6)(4)(15-2). This equals 156 in^3.
When we add 48 and 156, we get 204 in^3.
Hope this helps :)
Answer: 203.8 percent
Step-by-step explanation:
Jaqleen unloads a truck in x hours and Marco takes 2x hours.
Working together (x*2x) / (x+2x) = 5 hours
2x^2 / 3x = 5 Multiplying both sides by 3x equals 2x^2 -15x = 0
x = 7.5 hours
So Jaqleen takes 7.5 hours and Marco takes 15 hours
Double-Check (7.5 * 15) / (7.5 + 15) = 112.5 / 22.5 equals
5 hours Correct!!
