Answer: 180
Step-by-step explanation:
divide 45 by 7.5 to get the amount of dollars earned per hour
45/7.5 = 6
6(x)= 30hours, = 6(30) = $180
61) 75.4in^2
62) 88.0in^2
63) F
64) 144cm^2
65) 144 + 24√3cm^2
66) 1017.9 units^2
:)
20 days
x=number of days vacation
y=daily expenses
xy=1100
(x+2)(y-5)=1100
*******
xy-5x+2y-10=1100
xy-5x+2y=1110
y=1100/x
x(1100/x)-5x+2(1100/x)=1110
1100-5x+(2200/x)=1110
-5x+(2200/x)=10
-5x^2 + 2200 = 10x
-x^2 + (440) = 2x
x^2 - 440 + 2x = 0
(x+22)(x-20)=0
x=-22,20
only take the positive answer because the negative answer doesn't make sense in the question
so the answer is 20
****
I might be wrong; this question probation should've been this hard so I might have taken a wrong turn somewhere. feel free to double check my work
To find the inverse of a function, replace x and y in the equation and solve for y. In our case...
x=2y-10
x+10=2y
y=x/2+5
The abbreviation for milliliters can be any of those two as both are equally correct and can be used internationally thanks to the SI system.
