Lena found 24 ounces of gold on Monday. She found the same amount on Tuesday, and the same amount again on Wednesday. How much gold did
Does Lena have in all?
fill in the blank,
she has ounces
and that is equal to pounds and ounces

She has 72 ounces and that is equal to 4 pounds and 8 ounces.

Step-by-step explanation:

Monday, Tuesday, Wednesday = 3 days

24*3 = 72

16 ounces in 1 pound:

72/16 = 4.5

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