kelseydavid69
02.01.2020 •
Mathematics
Achild find 29 nickels and dimes. how many dimes are there if the total value of the coins are $2.10?
Solved
Show answers
More tips
- H Health and Medicine Choosing the Right Contraception Method: Your Ultimate Guide...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
Answers on questions: Mathematics
- M Mathematics 7. The table shows the relationship between y, the cost to rent a boat, and x, the amount of time the boat is rented. Boat Rental Costs Time, x Cost, y (hours) (dollars) 1...
- M Mathematics What is the differecne of the following polynomials? (6x^2 - 3x^3) - (2x^3 + 4x^2 -5)...
- M Mathematics This is worth 30points if u show work u will get brainliest...
- M Mathematics An account grows at an annual interest rate of r, so it grows by a factor of x = 1 + each year. The function A(z) = 800.24 + 350.03 + 500.02 + 600.0 gives the amount in the...
- S Spanish Answer for points! what the heck is this...
Ответ:
y represents dimes
x+y=29
5x+10y=210
multiply the first equation by -5 (elimination method)
-5x-5y=-145
then add the two equations together
5y=65
divide 5 from both sides
y=13
13 dimes
Ответ:
So there are 13 dimes and 16 nickels
To check the answer just put 13 x 10 +16 x 5 in a calculator and the answer should be 210
Ответ: