thy2002nguyen
thy2002nguyen thy2002nguyen
  • 01-12-2014
  • Mathematics
contestada

Phil has 50 nickels and dimes worth $4.15. How many of each coin does he have?

Respuesta :

luana
luana luana
  • 01-12-2014
[tex]x-number\ of\ nickels\\50-x-number\ of\ dimes\\\\0.05x+0.1(50-x)=4.15\\0.05x+5-0.1x=4.15\\0.05x-0.1x=4.15-5\\-0.05x=-0.85\ \ \ \ |:-0.05\\x=17\\\\50-17=33\\\\He\ have\ 17\ nickels\ and\ 33\ dimes.[/tex]
Answer Link

Otras preguntas

explain how and why entitlements affect government spending
how do i do this math problem?number 9?❤❤☺
Replace_ with a number to make_/24 >1/4 a true statment
35. Why must cooked potentially hazardous foods such as cooked vegetables and fried chicken be kept hot until served? A. To raise the water activity of the
Product testimonials are very reliable. Please select the best answer from the choices provided. T F
Samuel and Manny were involved in a tense discussion. Samuel started to get angry and began to pace back and forth to relieve his tension. As they talked, Samue
Somebody please help mee
A store sells baskets for 50% off the retail price. The retail price of a basket is $24. What is the sale price? A $10 B $12 C $20
which table contains ordered pairs that lie on the same graph of the equation -2x + 4y equals 16
The children of Israel were instructed in the Psalms to have a right ________ in the worship of God. A: rhyme B: attitude C: sacrifice