Answer:
2:14, 1:7, 3:21, and 18:126
Step-by-step explanation:
They are all multiplying by 7.
2*7= 14
1*7= 7
3*7= 21
18*7= 126
Hope this helps! :)
Answer:
5% p.a will rate of interest
Answer:
S=64
Step-by-step explanation:
if the s is what your looking for
Step-by-step explanation:
x = 1, y = 5
x = 2, y = 3
x =3, y= 1
x=4 y=-1
Answer: her call lasted for 26 minutes.
Step-by-step explanation:
Let x represent the number of minutes for which her call lasted.
Rachel purchased a prepaid phone card for $30. Long distance calls cost 6 cents a minute using this card. Converting 6 cents to dollars, it becomes 6/100 = $0.06
This means that the cost of x minutes of long distance call is
0.06 × x = $0.06x.
If the remaining credit on her card is $28.44, it means that
0.06x + 28.44 = 30
0.06x = 30 - 28.44
0.06x = 1.56
x = 1.56/0.06
x = 26
