Boyle's Law says that the volume of a gas varies inversely with the pressure. When the volume of a certain gas is[..]

Maria leaves Brno at 9 AM. Maria's speed is 60 km/h. Irina leaves Prague at 10 AM. Irina's speed is 100 km/h. When[..]

if P(-2,5), Q(3,2) and R(x,y) are three collinear points.find the co-ordinates of R if PR=2QR

John connected three resistors in series. The equivalent resistance of series resistors in the sum of the values of[..]

In ΔABC, m∠ACB = 90°, CD ⊥ AB and m∠ACD = 45°. Find CD if BC=3

In a right triangle the leg opposite to the acute angle of 30° is 7 in. Find the hypotenuse and other leg.

A store buys a n item for $50 and marks it up 100% what is the price?

Marsha is changing her phone service. One data package charges an initial fee of $50 and $13.25 per month. The other[..]

Tashi thinks of a 4-digit number, what is her number Every digit is different. The sum of the thousands digit and[..]

The Drama Club ordered 17 pizzas for a party. Each pizza had 8 slices. Kala ate 9 of the slices. How[..]