exam Maths Puzzle Numerical Ability

Could you please help me with this problem. I am supposed to use a system of equations to solve this question.
I have 30 coins worth $6.00. The coins are quarters and dimes. How many of each do I have?
Thank you very much!

Read Solution (Total 0)

exam Other Question
You need to borrow $5,000 for 2.33 years. Originally, the bank offers a 6.5% rate. Then, after some negotiation, they are willing to drop the rate to 5.5%. What savings in interes Can someone please help me on this problem? I am lost on this.

I need to find the constant of variation k

M varies directly with N; M = 144 when N = 8

Thank,
She