subject
Mathematics, 29.11.2021 08:20 ajay67

A jar contains 35 coins made up of 20c and 50c coins only. Then total value of the coins is $13.90.

(I) If there were x 20c coins, write an equation in x for the number of 50c coins.

(ii) Using the given information, write an equation in terms of x for the total sum of money
the jar holds.

(iii) Solve the equation to find the number of each type of coin in the jar.

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 18:00, Maaarii
Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?
Answers: 1
image
Mathematics, 21.06.2019 20:20, helpmeplzandty
Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)
Answers: 3
image
Mathematics, 22.06.2019 00:30, aleilyg2005
Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm2. what is the area of the second triangle?
Answers: 2
image
Mathematics, 22.06.2019 03:30, live4dramaoy0yf9
Which polynomial is in standard form? 3xy+6x®y2 - 4x4y + 19x? y* 18x5 - 7x{y-2xy2 + 1774 x5y5 - 3xy - 11x? y2 +12 15+ 12xy2 - 11x®ys +5x? y2 ?
Answers: 1
You know the right answer?
A jar contains 35 coins made up of 20c and 50c coins only. Then total value of the coins is $13.90...

Questions in other subjects:

Konu
Arts, 20.10.2021 07:00
Konu
English, 20.10.2021 07:00
Konu
Social Studies, 20.10.2021 07:00