7. a fish tank holds 180 gallons of water and is leaking at a rate of 8 gallons per day. a second fish
sak holds 160 gallons of water and is leaking at a rate of 6 gallons per day. at how many days will
me two fish tanks have the same amount of water?

10 days

Step-by-step explanation:

180 - 8x = 160 - 6x

Solve X (which equals to 10 days)

(x = amount of days)

2x^2+5x+17

your welcome. : )

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour