Jackson always throws loose change into a pencil holder on his desk and takes it out every two weeks. This time it was all
nickels and dimes. There are seven times as many dimes as
nickels and he has $10.50. Find the number of dimes and nickels.

Step-by-step explanation:

Let x represent the number of nickels.

Let 7x represent the number of dimes

0.10(7x)+0.05(x)=10.50

Lets use whole numbers so multiply the whole equation by 100.

0.10(7x)+0.05(x) =10.50

0.75x=10.50

x=14

Therefore there are 14 nickels and 98 dimes.

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.