amrobinson6678 amrobinson6678
  • 03-04-2018
  • Mathematics
contestada

Ron has 25 coins with a total value of $ 4.30 . the coins are dimes and quarters. how many of each coin does he have?

Respuesta :

courtney15061p6qwfn courtney15061p6qwfn
  • 06-04-2018
25=d+q
4.30= .1d + .25q

25=d+q
-17.20=-.4d+-q

7.80= .6d
d=13...... 13 DIMES

25= 13+q
12=q....... 12 QUARTERS
Answer Link

Otras preguntas

What is the circumference of a circle with a radius of 34 meters? (Use 27 as an estimate for a.) A. 7 meters O B. 11 meters C. 22 meters D. 44 meters
Use angle addition formula to find the expression for cos(a+b). Use the same formula to find cos(a+a).
A population of 350 animals has a growth rate of 5% each year. Write an exponential function to model this situation.
please help. The graph of y = f(x) is shown below. What are all of the real solutions of f(x) = 0?
Susan has 4 chickens, and over the past two weeks, she has gotten 3 eggs per day. What is the experimental probability that she will get 3 eggs tomorrow?
Solve for x. Round to the nearest tenth, if necessary. S 9 х Q 75° R
What the correct answer empzaba or empezó
The volume of a sphere can be given by the formula V = 4.18879r. You have to design a spherical container that will hold a volume of 55 cubic inches. What shou
FOR MATH FINAL WILL GIVE BRAINLIEST FOR CORRECT ANSWER
Read this passage: A group of concerned citizens has drafted a proposal to more strictly regulate the environmental impact of a state's oil refineries. However,