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

5. In 1775, war broke out between Great Britain and the American colonists because England put too many. Lon goods Americans bought.

Someone help. Urgent! I need someone to answer this! Factor -5b – 5c!

Can someone help me please!!

the number 54 is a multiple of 9 TRUE OR FALSE

What will happen if the evidence is not credible, accurate and reliable?

Fill in the blank with the word that best completes the following sentence. Was trinkst du? Ich trinke ______. A.keine B.kein C.keinen D.nichts

Which series of transformations shows that pentagon A is congruent to pentagon B? A. Rotate pentagon A 90° clockwise about the origin, translate it 5 units do

What is the slope of the line that passes through (7, 7.1) and (11, 8.3)

What is the name of the President who sent Lewis and Clark on an expedition west?

HELPPPPP Describe the role that glands play in the human body. Next, give two examples of glands in the endocrine system.