malikareed5
malikareed5 malikareed5
  • 02-09-2020
  • Mathematics
contestada

19. Amy has 8 coins worth $1.40. Some of the coins are nickels and some are quarters. How
many of each coin does Amy have?

Respuesta :

2005Alexis 2005Alexis
  • 02-09-2020

Answer:

5 quarters and 3 nickels

Step-by-step explanation:

x = nickels

y = quarters

x + y = 8

x(0.05) + y(0.25) = 1.40

3 + 5 = 8

3(0.05) + 5(0.25) = 1.40

0.15 + 1.25 = 1.40

1.25 + 0.15 = 1.40

Answer Link

Otras preguntas

How do you work out the problem 84 divided by4
Graph the line using intercepts: 4x-3y=12
What culture believes health is harmony between man and nature?
why can parents who are heterozygous for type a and type b blood have children with any of the four human blood types?
What sorts of signals does the brain use to communicate sensations, thoughts and actions?
True or False along a divergent boundary, two plates slip past each other,moving in opposite directions.
what is the simplest square root of 1345? no decimals please
What's a good slogan for a dietitian (have dietitian in it) ?
a soccer team played 160 games and won 65% of them. how many did they win?
There is an inverse relationship between x and y. If y is when x is 3, what is x when y is 9? 3 5