Kelly has 36 coins in her purse, only nickels and quarters. She has eight more quarters than nickels. If she has a total $6.20, how many nickels and quarters does she have?

Kelly has 36 coins in her purse, only nickels and quarters. She has eight more quarters than nickels. If she has a total $6.20, how many nickels and quarters does she have?

Two pencils and three pens cost .78. But three pencils and two pens costs .72. How much does one pencil cost?

I'm very confused with everything I just don't understand

can you please help.This is solving an equation!

Write an equation and solve the problem

can i multiply -2 to both sides to cancel 2 in this equation? 0=3x/-2??

I need help fast. This is due tomorrow morning. I just need help writing the equation and then I can do it from there. I don't have much else to say but it won't let me submit the question unless...

The largest side of the triangle is 10 feet longer than the smallest side. The third side is twice the smallest side. The perimeter of the garden is 80 feet.

I need answer plz !Ps. The answer need to be with only one variable !

You have already walked 5 miles of an 18-mile trail. If you walk the rest of the trail at a pace of 1 mile in 17 minutes, how many hours will it take you to finish the trail?

I need help on working this out and the answer to the question. I find it tricky

(x/a)+(y/b)+(z/c)=1 for a.

X^2 +9x+c

Jack is 5 years older than Sarah. In 3 years, jack will be twice as old as sarah. How old are they now? what variable equation would u use to answer this?

SOLVE EACH QUESTION BELOW FOR PRACTICE. ROLL A PAIR OF DICE, AND FIND THE SUM OF THE TWO NUMBERS SHOWING.

Solve √5-x=2x both graphically and algebraically.

(X+5)/4 + (X-2)/3 = 7

the hypotenuse length of a right angled triangle is 10cm and the length of the two sides of the right angle are x and y cm. if the perimeter =24 find the area i tried using pythagoras and...

a) write an equation that models the number of magazines that john can afford. b)solve the equation.

write a equation that represents the volume