Answered

Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Discover detailed solutions to your questions from a wide network of experts on our comprehensive Q&A platform. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

Sally is $3.95 in dimes and quarters that shows the total 23 coins how many times does she have and how many quarters does she have

Sagot :

iGreen
Make a system of equations:

0.10x + 0.25y = 3.95
x + y = 23

x + y = 23

Subtract 'y' to both sides:

x = -y + 23

Plug in -y + 23 for 'x' in the first equation:

0.10(-y + 23) + 0.25y = 3.95

Distribute 0.10:

-0.10y + 2.3 + 0.25y = 3.95

Subtract 2.3 to both sides:

-0.10y + 0.25y = 1.65

Combine like terms:

0.15y = 1.65

Divide 0.15 to both sides:

y = 11

Plug this into any of the two equations to find 'x':

x + y = 23

x + 11 = 23

Subtract 11 to both sides:

x = 12

So Sally has 11 dimes and 12 quarters.
Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Thank you for choosing Westonci.ca as your information source. We look forward to your next visit.