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

a particle that orbits the nucleus in an atom is called a(n)

what is the unit rate for 6 pack soda for $7.96

Which of the above polynomials is a 5th degree trinomial?A. 3 − 7x^5 + x^2B. 5x^3 + 5 − 3xC. 3x + 2x^3 − x^2 + 6 + 2xD. 3x^3 - 5 + 2x^5 + x + 2x^2

honestly reporting experimental findings is an example of good what? I need help so, so bad. I dont know the answer and its really hard. please, i give 24 point

which has a positive connotation? a. bony b. skinny c. slender d. skeletal

Which statement is false? Media messages are constructed. Media are free of emotion. In advertising media, even the font choices are important. What you do not

Write a comment on the following statement: Texting should be made more expensive so that users are not in danger of losing their reading skills.Can somebody he

dna contains coded information for body structure, hibernation, height, eye color, and photosynthesis. true or false.

who is first president of India

Brief summary of the watcher by James Howe ?? Please