The number of vibrations in a piano string are inversely proportional to its length. A wire 1.25m long vibrates at 510 vibrations/second. To produce 450 vibrations per second, how long should a wire be made

A blueprint scale is 1/4 in = 1 ft. If the blueprint measurement is 3 in in x 3 in, what should you cut?

To buy your weekly training you must run 3 km and you have 12 hectometres 9 dekameters and 8 m How many meters you are missing

Between the starting line and finish line there was an 8% decrease in the number of runners. If there were 75 runners at the starting line, how many made it to the finish line?

4 (3*-1) = 3+8*-11 2 (t+2) + 5t=6t+11

Find the excluded value (s) of x in the rational expression f (x) = x^2+7x / x^+14x+49

Write a ratio for the following description: Kaleel made three times as many baskets as john during basketball practice.

If you were on the moon, your weight would only be 0.17 of your weight on Earth. If you weigh 195.75 pounds on Earth, how much would you weigh on the moon?

Find the center, vertices, and foci of the ellipse with equation x^2/100+y^2/64 = 1.

The first person has $15 and saves $1.50 each day. The second person has $55 and spends $4.50 each day. In about how many days will they have the same amount of money? a 7 days b 15 days c 21 days d 12 days

Ten students participated in a raffle to win a computer. There are two new computers being given away and two students will be chosen at random one at a time without replacement. How many possible ways are there to choose the two students?