Pandadoge2716 Pandadoge2716

01-10-2018
Mathematics

contestada

Trisha has a bag with 32 dimes and nickels worth $2.80. How many of each coin does she have?

Respuesta :

wolf1728 wolf1728

01-10-2018

A) D + N = 32

B) .1D + .05N = 2.80 multiplying A) by -.1

A) -.1D -.1N = -3.2 then adding this to B)

-.05N = -.4

Nickels = 8 Dimes = 24

*************** DOUBLE-CHECK

.1 * 24 + .05 * 8 = 2.80 ||| 2.40 + 40 = 2.80

Answer Link

Otras preguntas

A restaurant has 100 tables and 28 of the tables seat 2 people and 72 of the tables seat 4 people. what percentage of the tables seat 4 people?

How does jem react when atticus tells him to go home, and why?

In contrast to many native-born jews, most yiddish-speaking jews who arrived in the united states from eastern europe after the 1880s were

Energy is released from atoms in the form of light when electrons

What atmospheric conditions might have preceded and thus set the stage for this wildfire?

The measure of one angle of an octagon is twice that of the other seven angles. What is the measure of each angle?

Debra’s peer group is made up of only girls; Rachel’s peer group is a mix of boys and girls. Debra is more likely than Rachel to be in

how to solve this:1+4x=-5+7x

What is the difference between myocardial infarction (MI) and cardiac arrest?

The principle that energy cannot be created or destroyed in known as ______.