Step-by-step explanation:
let father's age be f yr old and son age be s yr old
f = 5s -(1)
f + s = 60 -(2)
sub (1) into (2):
5s + s = 60
6s = 60
s = 10
f = 60 - 10 = 50
in 5 yr time, father age = 50 + 5 = 55
son age = 10 + 5 = 15
Remark
The best way would be to make a duplicate of this page and cut out the shapes. Then find out which ones fold into a cube. It would also be the most time consuming.
The second best way is to imagine how each flat surface would fold to make a cube. I think C would and D would. I don't think the other 2 would.
Answer:
Shawn is paying $135 a year. He pays a base fee of 50 guarenteed and then he pays 5 dollars for every book he buys.
bibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabibloteccabiblotecca
Step-by-step explanation:
y-y1=m(x-x1)
m=y2-y1/x2-x1
