Zahara mixed 5 quarts of dry ingredients and 2 quarts of water to make a
concrete. she ran out of the mixture before finishing her project, so she mad
batch using 10 quarts of dry ingredients.
*) how many quarts of water does zahara need to add to keep the
consistency the same? complete the ratio square.
batch 1
batch 2
basingen
von o
dry ingredients (at)
5
10

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?