![katerin4738](/avatars/21085.jpg)
katerin4738
10.07.2019 •
Mathematics
Sarah has a collection of nickels, dimes, and quarters worth 15.75. she has 10 more didmes than nickels and twice as many quarters as dimes. how many coins of each kind does she have?
Solved
Show answers
More tips
- F Family and Home How to Remove Tar Stains: Tips and Recommendations from Experts...
- H Health and Medicine Novomin: What is it and how to use it?...
- P Philosophy Unbelievable stories of encounters with otherworldly forces...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- H Health and Medicine How to Treat Whooping Cough in Children?...
- H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
Answers on questions: Mathematics
- M Mathematics At 9:00 A.M. the temperature is 51 F. The temperature increases 3 F each hour for the next 6 hours. Write a function to model the temperature T at h hours after...
- M Mathematics What values of w and x make △RST≅△GHI?...
- M Mathematics 5. Look at this number line. Write the numbers shown by the arrows. L. 4.5 4.6 4.7 Please help me...
- M Mathematics The sum of 10 and Julie s score is 65....
- M Mathematics Any boys wanna talk on padlet or video chat...
- M Mathematics Larry, Moe, and Curly went bowling. Moe was the winner! Larry s score was half of Moe s score. Curly lost to Moe by 10 pins. If their combined score was 590 pins,...
- M Mathematics Erica earned $261 last week. If she worked 18 hours and earned the same amount each hour, how much was she paid per hour?...
- M Mathematics Will mark brainliest, 50 points. I need some help graphing an equation, could someone graph it on paper and show me? i have multiple of these to do and if i can...
- M Mathematics Help me plz i dont understand how t=40...
- M Mathematics Which of the following equations matches the model shown above? A. 4 + 4 + 4 + 4 = 20 B. 4 + 5 + 4 + 5 + 4 = 20 C. 5 + 5 + 5 + 5 + 5 = 20 D. 5 + 5 + 5 + 5 = 20...
Ответ:
Let n, d, q represent the numbers of nickels, dimes, and quarters Sarah has. The problem statement gives rise to three equations:
... 5n +10d +25q = 1575 . . . . . . the collection's value in cents
... n + 10 = d . . . . . . . . . . . . . . . . the number of dimes is 10 more than the number of nickels
... q = 2d . . . . . . . . . . . . . . . . . . . she has twice as many quarters as dimes
Solving the second equation for n and substituting into the first equation, we have ...
... 5(d -10) + 10d + 25(2d) = 1575
... 65d -50 = 1575
... 65d = 1625
... d = 1625/65 = 25
... n = d -10 = 15
... q = 2d = 50
Sarah has 15 nickels, 25 dimes, and 50 quarters.
Ответ:
Hope this isn't too late. The Answer Is D.
Step-by-step explanation:
The graph line becomes dotted when the inequality is less than or greater than, never less than or equal to./ greater than or equal to. This leaves to choices: B and D. D is the correct answer because the way the shading is going. because the shading is going up that means that the inequality is greater than.