Answer:
21 dimes and 28 quarters
Step-by-step explanation:
To determine the number of quarters and dimes that you have, you can write the following equations:
x+y= 49 (1)
y= 7+x (2)
x= number of dimes
y= number of quarters
You have to replace 2 in 1:
x+(7+x)= 49
2x= 49-7
x= 42/2= 21
y= 7+21
y= 28
You have 21 dimes and 28 quarters.
yes, that is the correct answer. X is domain and Y is range so you are correct.
50%
you divide 75 by 37.50 i hope this helped.
Fish
Multiply through row 1 by -1:
Add 3(row 1) to row 3:
Multiply through row 2 by 1/5:
Add -1(row 2) to row 1: