Alvin’s first step in solving the given system of equations is to multiply the first equation by 2 and the second equation by –3. Which linear combination of Alvin’s system of equations reveals the number of solutions to the system? 9x + 4y = 36 6x + 2.5y = 24 Infinite solutions: 0x – 0y = 0 No solutions: 0x + 15.5y = 144 One solution: 0x + 0.5y = 0 Two solutions: 0x – 0.5y = 60

46.2+112.3

step-by-step explanation:

x/3-10=8

x/3=18

x=48

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.