05-09-2017
Mathematics

contestada

Joey has $5.75 made up of dimes and quarters. If Joey has 38 coins, how many of each coin does he have?

Respuesta :

kphung76127 kphung76127

05-09-2017

d+q=38
0.1d+0.25q=5.75

Multiply the second equation by -10 and use elimination method.
-d-2.5q=-57.5
d+q=38

-1.5q=-19.5
q=13

Plug quarter number in
d+13=38
d=25

Final answer: 13 quarters, 25 dimes

Answer Link

Otras preguntas

Why did congress reconstruction efforts to ensure equal rights to the freedmen fail?

a pond is 0.03 meters thick.if the pond were 10 times thick how many meters thick would the ice be?

which ruler united upper and lower egypt

What are the 4 types of processes that cycle matter through the biosphere give examples?

How are the basic beliefs of your faith similar to the other monotheistic faiths? for islam, christianity and judaism

9 is 12 percent of what number? ( show your work)

What is d slope intercept of 11x-8y=-48

Which pair of sentences can be combined using a conjunction? A. Alison meant to call home before she left the party. She forgot. B. Mother can't wait for th

What is a good metaphor for scornful?

-3=z-8 Solve and answer the equation