sadieismichaeljackso
07.03.2020 •
Mathematics
A jar contains n nickels and d dimes. There is a total of 179 coins in the jar. The value of the coins is $12.60. How many nickels and how many dimes are in the jar
Solved
Show answers
More tips
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
- G Goods and services How to Choose the Right High Chair for Your Baby?...
- S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...
- S Style and Beauty How to braid friendship bracelets?...
Answers on questions: Mathematics
- M Mathematics Monica liga una hoja de papel varias veces y cuenta la cantidad total de rectángulos más pequeños que se forman con los dobleces halla la expresión algebraica que relaciona la...
- M Mathematics Hi there! Sorry to bother you, but can someone help me out with this? (the no. 7 to 10 pweassee) ฅ^•ﻌ•^ฅ For those who know the answer for this, please, can you help me? THANKSSSKindly...
- M Mathematics Identify the transformation that occurs to create the graph of h(x). H(x)=f(x+3)...
- M Mathematics What is the probability that this spinner will stop on blue or white when it is spun? 1/4 is white 1/4 is purple 1/4 is blue 1/4 is black...
- M Mathematics Find the value of x....
- M Mathematics Hi there! Sorry to bother you, but can someone help me out with this? (the no. 4 to 6 pweassee) ʕ•ᴥ•ʔ For those who know the answer for this, please, can you help me? THANKSSSKindly...
- M Mathematics Solve these couple of questions from quadratic equation. plz...
- M Mathematics Find a number such that if 16 is added to it, the ratio of the result to the original number is 4:3...
- M Mathematics Plz tell me all the answers it would help me alot...
- M Mathematics For Event D, compute the absolute relative difference |50−()|() | f 50 − P ( D ) | P ( D ) , where f50 is the relative frequency of Event D on the 50th trial and P(D) is the classical...
Ответ:
the jar contains 73 dimes and 106 nickels.
Step-by-step explanation:
The worth of a dime is 10 cents. Converting to dollars, it becomes
10/100 = $0.1
The worth of a nickel is 5 cents. Converting to dollars, it becomes
5/100 = $0.05
Let d represent the number of dimes in the jar.
Let n represent the number of nickels in the jar.
There is a total of 179 coins in the jar. This means that
d + n = 179
The value of the coins is $12.60. This means that
0.1d + 0.05n = 12.6 - - - - - - - - - - - 1
Substituting d = 179 - n into equation 1, it becomes
0.1(179 - n) + 0.05n = 12.6
17.9 - 0.1n + 0.05n = 12.6
- 0.1n + 0.05n = 12.6 - 17.9
- 0.05n = - 5.3
n = - 5.3/-0.05
n = 106
d = 179 - 106
d = 73
Ответ:
a reflection across the line containing AB
Step-by-step explanation: