/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q. 73 Carolyn has $2.55 in her purse i... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 3: Q. 73 (page 351)

Carolyn has $2.55 in her purse in nickels and dimes. The number of nickels is nine less than three times the number of dimes. Find the number of each type of coin.

Short Answer

Expert verified

The number of dime is 12 and number of nickel is27

Step by step solution

01

Step 1. Given Information

Total amount=$2.55

There are two types of Money that is nickels and dimes.

Let he number of dimes be x

Therefore ,

According to the question,

number of nickels will be 3x-9

Value of each dime0.10

The total value of dimes will be0.10x

Value of each nickel is0.05

Therefore, total value of nickels will be0.05(3x-9)

02

Step 2. Solution of the equation 

Now, According to the question,

0.10x+0.05(3x-9)=2.550.10x+0.15x-0.45=2.550.25x-0.45=2.550.25x=2.55+0.450.25x=3x=12Therefore,3x-9=3脳12-9=36-9=27

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.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

The difference of a number and eight is 17. Find the number.

When Hiro and his co-workers had lunch at a restaurant near their work, the bill was $90.50.They want to leave 18%of the total bill as a tip. How much should the tip be?

The nutrition fact sheet at a fast food restaurant says a small portion of chicken nuggets has 190 calories, and 114 calories are from fat. What percent of the total calories is from fat?

Kimngoc had lunch at her favorite restaurant. She wants to leave15%of the total bill as her tip. If her bill was$14.40, how much will she leave for the tip?

The sum of two numbers is zero. One number is nine less than twice the other. Find the numbers.
See all solutions

Recommended explanations on Math Textbooks

Applied Mathematics

Read Explanation

Discrete Mathematics

Read Explanation

Probability and Statistics

Read Explanation

Geometry

Read Explanation

Pure Maths

Read Explanation

Mechanics Maths

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.