when adding like fractions, why are the numerators added but not the denominators? When are equivalent fractions used when adding two like fractions

William is 3 years older than charmine the sum of 3 times charmines age and 2 times williams age is 76 how old are william and charmine

In the diagram below, angle 7 equals 61°. What is the measure of angle 8?

If - 18≥6-12ax - 18/geq6-12ax - 18≥6-12ax minus, 18, is greater than or equal to, 6, minus, 12, a, x, which inequality represents the possible range of values of 1-2ax1-2ax 1-2ax

Rachna has nickels, dimes, and quarters in her piggy bank. She has $4.65 altogether. She has three more quarters than dimes and twice as many nickels as quarters. How many quarters does Rachna have?

Sam practiced piano for 20 minutes on Monday and 43 minutes on Tuesday. Kayla practiced flute for 17 minutes on Monday. Kayla wants to practice the same total amount as Sam. The equation shown represents this situation.

Malory got a 75% on her math test. To earn that score, she got 27 questions correct. Write an equation to find how many questions were on the test. Then solve

Probability With a Pair of Dice: Find the probability of rolling the difference of 1.

1/7 = 3/4x-1 solve for x

12 eggs cost $2.04. How much would 18 cost?

A mahogany desk with a cash price of $810 is offered on the installment plan at $50 down and $58 per month for 15 months. What is the total cost of the desk?