leandrogarin37p2g5ds
05.07.2019 •
Mathematics
Im literally in tears this is so frustrating! brainliest answer a coin collector has $1.90 in dimes and nickels. she has seven more dimes than buckles. how many nickels does she have ?
Solved
Show answers
More tips
- C Computers and Internet Where did torrents.ru move to?...
- 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 The correct answer is y 18. Let s pretend a student forgot to flip the symbol and they mistakenly believe the solution set is y 18. They check 21 since 21 is greater...
- M Mathematics The playing time X of jazz CDs has the normal distribution with mean 52 and standard deviation 7; N(52, 7). According to the 68-95-99.7 rule, what percentage of...
- C Chemistry Explain in brief how some bacteria cause tooth cavities...
- B Business Urchases on account are given below: october november december 30,000 40,000 50,000 55% of the month s purchases will be paid in the month of the purchase; the remaining...
Ответ:
d= dimes
n = nickels
d =n+7
n*.05+.1*d = 1.90
substitute d = n+7
.05n +.1 (n+7) = 1.9
distribute
.05n +.1n +.7 = 1.90
combine like terms
.15n +.7 = 1.9
subtract .7 from each side
.15n = 1.2
divide by .15
n=8
d=n+7
d=15
you have 8 nickels and 15 dimes
Ответ: