•paul mixed 5 quarts of dry ingredients and 2 quarts of water to make a batch of
concrete. he ran out of the mixture before finishing his project, so he made another
batch using 15 quarts of dry ingredients.
how many quarts of water does paul need to add to keep the
consistency of the concrete the same? complete the ratio square,
batch i
batch 2
dry ingredients (at)
5
15
water at

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?