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

Could I have a clear explanation of First Person, Second Person, and Third Person views? I'll mark brainliest. Thanks.

Help pls ty it's very urgent

4. Mi familia y yo viajamos___ tren en nuestra vacación. 1.a 2.sin 3.por 4.para

All races are more than 175 miles?

0.612 repeating as a fraction

Which of the following helps to avoid wasting resources on goals that CANNOT be accomplished? Flexibility Realistic expectations Persistence Organized plann

Which article of the Constitution gives the Supreme Court its power? Article I Article II Article III Article IV

Tlaloc pumped up 56 balls. He pumped up 5 dodge balls for every 9 other balls.

What is x to the 1/2 power divided by x to the -1/2 power

A product with a low level of elasticity of demand has which feature? A. Demand for the product changes unpredictably over time. B. Demand for the product gradu