jazzyjazz6212 jazzyjazz6212

06-06-2018
Mathematics

contestada

A collection of 40 coins consists of dimes and nickels. the total value is $2.40. how many dimes are there

Respuesta :

StampyCat StampyCat

06-06-2018

Call the dimes as X ,the nickels as Y
A dime worth 0,1 $
A nickel worth 0,5 $
So :X+Y=40
0,1X+0,05Y=2,4
=>X=8,Y=32

Answer Link

Otras preguntas

30 dogs to 20 cats lowest fraction

30 POINTS FOR THIS ONE 1. In the equation 0.5x - 8 = 1.5, the decimal coefficient is ___________________. 2. In the equation 3/4y + 1/2 = 3 1/4, the fracti

1. OSHA is an agency responsible for workplace safety, read its rule and sketch a diagram that shows the proper relationship between the ladder, wall and ground

Which line's meter is iambic?A.) At the end of the month, I get paid.B.) I give the best of all I have to offer Sam.C.) Quarterly figures are plummeting steadil

Bob Farted 3 times every 30 seconds how many time does Bob fart in 2 days?

John has grades of 82 and 98 on his first two history tests. What must he score on his third test so that his average is at least 88?

How did the Inca innovate to meet their needs?

5x 2 + 15x=0 is a quadratic equation. True False

Baker Industries’ net income is $26,000, its interest expense is $6,000, and its tax rate is 45%. Its notes payable equals $23,000, long-term debt equals $70,00

Barbara owns a manufacturing plant with four facilities (North, South, East, and West) in the state of Indiana. The workers at one of those facilities, North, h