senathghosh9117 senathghosh9117

24-10-2018
Mathematics

contestada

John has $6.10 in quarters and nickels in his pocket. If John has 34 coins in his pocket, how many of the coins are quarters?

Respuesta :

alefaires21 alefaires21

24-10-2018

34 = q + n
6.1 = .25q + .05n

-1.7 = -.05q - .05n
6.1 = .25q + .05n

4.4 = .2q
q = 22

22 of the coins are quarters.

Answer Link

Otras preguntas

a central angle θ of a circle with radius 16 inches subtends an arc of 19.36 inches. find θ

Sandy has 8 markers.alex has 6 fewer markers than sandy jill has 2 markers.how many markers do they have in all .explain how you found the answer

3x + 8 = -x + 20 What is x?

"giga" can mean both 109 and 230. explain to what each refers. can this cause confusion when reading a computer advertisement?

A displacement vector has a magnitude of 810 m and points at an angle of 18° above the positive x axis. what are the x and y scalar components of this vector? x

Which type of movement occurs in the intercarpal joint in the wrist? which type of movement occurs in the intercarpal joint in the wrist? opposition rotation gl

In ancient Asia how would people communicate?

When a number gets assigned to a variable that already has a value __________?

People learn behaviors and attitudes according to their _____ the social structure.

Long-married, happy couples may distort facts about their relationship, but they share similar stories. this reveals that: