Answer:
15) f = 18
3f = 54
6f = 108
16) k = 69
Step-by-step explanation:
15)
3f + 6f + f = 180
10f= 180
f = 18
16)
42 + k + k = 180
42 + 2k = 180
2k = 138
k = 69
3/5(30x - 15) = 72
18x - 9 = 72 <==== this is one
3(6x - 3) = 72 <== this is one
18x = 81 <== this is one
x = 81/18
x = 4.5 <== this is one
Answer
19.66
Step-by-step explanation
you would line the numbers up so that the 7 in 17 is above the 2 and that you line up the decimals. to do this you would do 17.00 to make it even and add that way.
17 goes to 17.00
17.00
2.66. ( Add this way)
1 9 . 66. (six plus zero is 6), (seven plus 2 is 9),
