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 original science called
90 PTS HELP Maria has already written 2/5 of her 1,000 word essay. If she continues writing at the same pace of 6 words per minute, which expression shows the a
Determine the sign of cos pi divided by seven
Can someone help me
A line contains the points (4, 2) and (0, -1). What is the equation of the line? Show your work.
What is one example of the ineffectiveness of the colonialist activities that Marlow witnesses in Africa? O A. An accountant teaches a woman to clean his clothi
This chart shows spending during World War I. A list titled Total War Spending, 1920 dollars with the following entries: United Kingdom, 39.9 billion dollars;
EMERGENCY!!! OK SO I need help on 4 questions! Lots of points for this :) Also please make sure it's correct cause this is for a grade! Please and thank you so
The Council of Trent (1545-1563) reaffirmed certain Roman Catholic beliefs and yet made some reforms. List separately these reaffirmations of belief and the ref
What expression is equivalent to 2x^2+2x-4/2x^2-4x+2