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

Help answer and EXPLAIN STEP BY STEP

Can a gene be inserted to make a mutation inactive?

Read this paragraph: After John woke up early this morning, he dressed for school. Also, he ate a good breakfast with his two sisters. In addition, he had enoug

Which expression gives the volume of a sphere with radius 5?

How to write the essay

How many moles of chloride ions are there in 2 moles of calcium chloride?

- Ejercicio en Español

A solute crystal is dropped into a solution containing dissolved solute. It falls to the bottom of the beaker and does not dissolve after vigorous stirring. Wha

Which location was the processing point for immigrants who arrived on the West Coast? Answer the following questions in two complete sentences each. A. Angel

a body is dropped from a height of 240m. (i)How long does it take to reach the ground. (ii) What is the velocity with which it will strike the ground.