A mom buys a water bottle and a jersey for each of the 10 players on the volleyball team. Each jersey costs $6.70. The mom spends a total of $221 for water bottles and jerseys. Enter an equation that modes the situation with u, the cost of one water bottle.

one water bottle cost 15.4 dollars

Step-by-step explanation:

6.7 times 10 is 67

therefore the mom spent 67 dollars on jerseys

221 (total) minus 67 ( jersey) = 154

therefore she spent 154 dollars on water

154 divided by 10

=15.4

the water bottles cost 15.4 dollars

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.