387 in base 10 to base 5

387 in base 10 to base 5 is 3022

Step-by-step explanation:

To convert 387 in base 10 to base 5, we would take the following steps

Firstly , we would divide the number to be converted by 5. The remainder forms the last digit of the number in base 5 while the quotient is divided again to get a new quotient and remainder. The new remainder forms the next digit to the left of the last digit. It continues till it gets to zero. Therefore,

387/5 = 77 remainder 2(last digit)

77/5 = 15 remainder 2(next digit to the left of the last).

15/5 = 3 remainder 0(next digit to the left)

3/5 = 0 remainder 3(next and final digit to the left)

Therefore, 387 in base 10 to base 5 is 3022

3022  

Step-by-step explanation:

To convert a number from base 10 to base 5, divide the number repeatedly by 5, keeping track of each remainder, until you get a quotient that is equal to zero

Next, write all the remainders in reverse order.

387₁₀ = 3022₅

Check:

387 = 3×5³ + 0×5² + 2×5¹ + 2×5⁰

387 = 3×125 + 0×25 + 2×5 + 2×1

387 = 375 + 0 + 10 + 2

387 = 387

OK.

312312

step-by-step explanation:

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18