Meihua has 4 times as many storybooks as Maria. She has

135 more storybooks than Maria. How many storybooks do they

have altogether?

(1) 205

(2) 225

(3) 235

(4) 315

Answer: 225 altogether.

Step-by-step explanation:

Let x represent Meihua's number and y represent Maria's number of books.

4x = y and x + 135 = y

Substitute and solve for x

4x = x + 135 Subtract x from both sides.

3x = 135. Divide both sides by 3.

x = 45 That's how many Meihua has. Then figure Maria's number by substituting 45 in place of x in the original equations.

4 (45) = y. And 45 + 135 = y

In both, y = 180.

x + y = total altogether

45 + 180 = 225