The sister is as old as the brother will be when the sister is twice as old as the brother was when the sister' age was half the sum of their present age

A boat moves at 10.0 m/s relative to the water. if the boat is in a river where the current is 2.00 m/s, how long does it take the boat to make a complete round trip of 1 000 m upstream followed by a 1 000-m trip downstream?

Ashley, Frank, and Chang sent a total of 73 text messages over their cell phones during the weekend. Frank sent 7 more messages than Ashley. Chang sent 2 times as many messages as Frank. How many messages did they each send?

Which of the choices below can be determined from the magnitude of the slope of a distance versus time graph? A. acceleration B. force C. speed D. velocity

How much data is needed to have a representative sample of the population? 1. 10 to 20 items. 2. At least 100 items. 3. All of the population. 4. It depends on the size of the population.

1,5,_,13 whats the answer to this ... Sequence number

The model shows a rectangular field with a length of 250 meteters. the perimeter of the field is 600 meters

write each as an algebraic expression 1) The sum of 4 and w 2) Xmore than 10 3) the quotient of 40 and 4

The Ray family went out to dinner. The price of the meal was $38.95. The sales tax was 7% of the price of the meal. The tip was 18% of the meal and the sales tax. How much money did the Ray family pay for the meal, including tax and tip?

Two biased dice of exercise 6b question 5 is rolled 420 times. state how many times you would expect to obtain

If the base lengths of the prism are doubled, how will the volume be affected? A) it will be multiplied by 2 B) it will be multiplied by 3 C) it will be multiplied by 4 D) it will be multiplied by 6