Chapter 3: Q. 167 (page 351)

Rachelle has $ $6.30$ in nickels and quarters in her coin purse. The number of nickels is twice the number of quarters. How many coins of each type does she have?

Short Answer

Expert verified

The number of quarters is $18$ and nickels are $36$

Step by step solution

Step 1. Given Information

The total amount of money $= $ 6.30$

Let he number of quarters be $x$

Therefore ,

According to the question,

number of nickels will be $2 x$

Step 2. Solution of the equation

Now, According to the question,

$0.25 x + 0.05 (2 x) = 6.30 0.25 x + 0.1 x = 6.30 0.35 x = 6.30 x = 18 T h e r e f o r e, 2 x = 36$

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Rachelle has $ $6.30$ in nickels and quarters in her coin purse. The number of nickels is twice the number of quarters. How many coins of each type does she have?

Short Answer

Step by step solution

Step 1. Given Information

Step 2. Solution of the equation

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Probability and Statistics

Pure Maths

Decision Maths

Logic and Functions

Discrete Mathematics

Statistics

Study anywhere. Anytime. Across all devices.

Rachelle has $6.30 in nickels and quarters in her coin purse. The number of nickels is twice the number of quarters. How many coins of each type does she have?

Short Answer

Step by step solution

Step 1. Given Information

Step 2. Solution of the equation

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Probability and Statistics

Pure Maths

Decision Maths

Logic and Functions

Discrete Mathematics

Statistics

Study anywhere. Anytime. Across all devices.

Rachelle has $ $6.30$ in nickels and quarters in her coin purse. The number of nickels is twice the number of quarters. How many coins of each type does she have?