Math
posted by Anonymous .
Andy has 21 watches. He has twice as many watches with black bands than with gold bands. How many gold band watches does Andy have?

x + 2x = 21
3x = 21
x = 7
Respond to this Question
Similar Questions

math
My friend found two old watches. He wound them, set them, and started both of them at the same time. He placed the two old watches on one wrist and his new watch on the other wrist. Fortyfive minutes later one of the old watches had … 
Math
Two old watches were found. Both watches were set for the current time. Fortyfive minutes later one old watch was 1 minute ahead and the other old watch was 2 minutes behind. The next morning one watch read 7am and the other read … 
English  Native speakers
Hello! Is it correct to say He watches sport on TV or he watches sports on TV. What is the difference? 
statistics
The probability that a married man watches a certain television show is 0.4 and the probability that a married woman watches the show is 0.5. The probability that a man watches the show, given that his wife does, is 0.7. Find the probability … 
Statistics
At the Starlight Jewelry store, the customer preferences for wedding bands is 60% yellow gold, 29% white gold and 11% platinum. If 15 customers are randomly selected, what is the probability that more than 10 of them choose yellow … 
English
1. He watches TV in the night. 2. He watches TV at night. (Are both correct? 
math
Carrie can inspect a case of watches in 5 hours. James can inspect the same case of watches in 3 hours. After working alone for 1 hour, Carries stops for lunch. After taking a 40 minute lunch break, Carrie and James work together to … 
math help please
Chumley from the TV show "Pawn Stars" bought some vintage watches for $15 each. He sold five of the watches for $36 each. What was the total amount of profit made for the watches sold? 
Statistics
Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have an average life of 32 months before certain electronic components deteriorate, causing the watch to become unreliable. The … 
Mathematics
A dealer gains a selling price of 4 watches by selling 20 watches. What is the percentage of profit?