I believe it is dilation by 3 :)
Remember
if |a|=b then assume a=b and a=-b
divide boths ides by -3
|2x+6|=4
assume
2x+6=4 and 2x+6=-4
minus 6 both sides
2x=-2 and 2x=-10
divide by 2
x=-1 and x=-5
2nd option
4+4v = 3v +4
------- = -----------
-3 2
use cross products
(4+4v) *2 = -3*(3v+4)
distribute
8+8v = -9v-12
add 9v to each side
8+17v = -12
subtract 8 from each side
17v = -20
divide by 17
v = -20/17
Answer: $8
Step-by-step explanation:
Total Debt : $36
Every Week Paying Back: $4
So in 4 weeks so earns a total of $28 to pay back.
36 - 28 = 8
$8 is left to pay
----
so the answer is $8
Katie won't have more than 100 shells until the 7th day
