Pandadoge2716 Pandadoge2716

01-10-2018
Mathematics

contestada

Trisha has a bag with 32 dimes and nickels worth $2.80. How many of each coin does she have?

Respuesta :

wolf1728 wolf1728

01-10-2018

A) D + N = 32

B) .1D + .05N = 2.80 multiplying A) by -.1

A) -.1D -.1N = -3.2 then adding this to B)

-.05N = -.4

Nickels = 8 Dimes = 24

*************** DOUBLE-CHECK

.1 * 24 + .05 * 8 = 2.80 ||| 2.40 + 40 = 2.80

Answer Link

Otras preguntas

Compute the odds in favor of rolling a sum of 10 in a single roll of two fair dice

which type of gas is filled in lays pack and why?

which type of gas is filled in lays pack and why?

List all integers between -0.6 and 4.17 THANK U

Write a complete reaction of succinic acid and acetic anhydride

can u tell me how to solve this promblem 4/7 plus 3/7

What is the probability of someone correctly guessing your Social Security number? (Assume all digits 0-9 are available for use)a

Write a complete reaction of succinic acid and acetic anhydride

Write a complete reaction of succinic acid and acetic anhydride

find the amplitude, period, and phase shift of the function defined by: y=3-2cos(3x+pi)