Answer this question:Nadine collected different colored pebbles. She has 20 white pebbles and half as many red pebbles. How many pebbles does she have in all?
Nadine has 20 / 2 = 10 red pebbles. Thus, she has 20 + 10 = 30 pebbles.
The answer is 30.

Answer this question:Mark bought a shirt, pants, and shoes for $340. What is the price of the pants knowing that the price of a shirt is three-quarters of the price of the pants and that the price of a shoe is ten dollars more than the price of the pants?
Let X be the price of the pants. The price of the shirt is 3 / 4 * X. The price of the shoes is X + 10. The total amount paid is X + 3 / 4 * X + X + 10 = $340. Combining like terms we get X * 11 / 4 + 10 = $340. Subtracting 10 from both sides we get X * 11 / 4 = $330. Dividing both sides by 11 / 4 we get X = $120.
The answer is 120.

Answer this question:Harry participates in the auction of a classic painting. The auction starts at $300, Harry is the first to bid, adding $200 to the starting value, a second bidder doubles the bid, and a third bidder adds three times Harry's bid. Finally, Harry bids $4,000. By how much did Harry's final bid exceed that of the third bidder?
Adding Harry's $200 to the initial value, the bid is at 300 + 200 = $500. The second bidder doubles the previous value, reaching a value of 500 * 2 = $1000. The third bidder adds three times the value of Harry's, then adds 500 * 3 = $1500. Adding the $1500 to the value of the second bid, the bid is at 1500 + 1000 = $2500. With the final bid of $4000, Harry bids 4000 - 2500 = $1500 more than the third bidder.
The answer is 1500.

Answer this question:It's Yvette's turn to treat herself and her three best friends to a round of ice cream sundaes. Alicia orders the peanut butter sundae for $7.50. Brant orders the Royal banana split sundae for $10.00. Josh orders the death by chocolate sundae for $8.50 and Yvette orders the cherry jubilee sundae for $9.00. She leaves her waiter a 20% tip. How much will her final bill be?
Yvette spent 7.50 + 10 + 8.5 + 9 = $35.00 on ice cream sundaes. Her bill comes to $35.00 and she leaves a 20% tip for the waiter so that's 35 * .20 = $7.00. The bill was $35.00 and she added a $7.00 tip for a total of 35 + 7 = $42.00.
The answer is 42.