AnnaraeU173969 AnnaraeU173969
  • 03-11-2022
  • Mathematics
contestada

If Corey has 2 times as many nickels as dimes and they have a combined value of 80 cents, how many of each coin does he have? dimes nickels

Respuesta :

ZylinE61637 ZylinE61637
  • 03-11-2022

Given:

Corey has 2 times as many nickels as dimes

Let the number of nickels = x

Let the number of dimes = y

So,

[tex]x=2y[/tex]

and they have a combined value of 80 cents

[tex]5x+10y=80[/tex]

Substitute from x = 2y

so,

[tex]\begin{gathered} 5\cdot2y+10y=80 \\ 10y+10y=80 \\ 20y=80 \\ y=\frac{80}{20}=4 \\ x=2y=8 \end{gathered}[/tex]

so, the answer wil be:

dimes = 4

nickels = 8

Answer Link

Otras preguntas

help me asap!! pleaseee. Triangle JKL is equilateral. All three interior angles have equal measures. what is the measure of exterior angle 1?
How does the author hope people will change their behavior?
Evaluate:−49−37 its a stupid fraction
In the tragedy of macbeth, act iii, what is the most likely reason that macbeth sends along a third murderer to join the first two in killing banquo? a. macbeth
find BD???????????????
HELP ME ASAP. Which statements about the angles of the triangle are true? Check all that apply
Which of the following is NOT a type of bank account? A. cuenta de ahorros B. cuenta corriente C. cajero automático
Which is a physical sign of stress
Find m∠LON????????????
Describe how to translate the graph of y=square root of x to obtain the graph of y=x-9