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

which is the correct order of processes that occur for water to move from a lake to a cloud and then turn into rain

Damon and Pythias Damon and Pythias had been the best of friends since childhood. Each trusted the other like a brother, and each knew in his heart there was no

What did the case Plessey v. Ferguson decide?

Which of the following best explains how and why the practice of Native American slavery changed over time? Over time, Native Americans replaced African slaves

solve for x 4^x-2=256

Which of the following best explains how and why the practice of Native American slavery changed over time? Over time, Native Americans replaced African slaves

A train is moving at 35 m/s to the east. it speeds up to 42 m/s east over the course of 40 seconds. what was trains acceleration

Who was Robert Oppenheimer?

What is the best way to change the sentence below from passive voice to active voice? The band was shocked by Patrick's loud music. a. The band, by Patrick's lo

The discovery of Hammurabi's law code was an important archaeological find because it __________. was the first law code developed in the Middle East showed tha