Not sure I understand...
Could someone please explain this to me....
"Write a formula to calculate the total cost, úT, of B Maths books each costing úP and B Physics books each costing twice as much as each Maths book."
The answer is T = 3BP
What i'm not sure about is where the 3 comes into play?
B Maths books EACH costing... = 1
B Physics books costing TWICE as much as EACH maths book = 2
so thats where the 3 comes from or am I completely on the wrong lines!!!! :p
My initial thought would have been T = 2BP but thats wrong...
Thanks in advance, I'm struggling with maths at the moment!
As you say. The Math book costs x and the Physics book costs 2x. So if you buy B Math books and B Physics books you are going to pay
Originally Posted by c19h28o2
Bx + B(2x) = 3Bx
Suppose its just a way of thinking!