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Joan waters her plants each day with gallons of water. With a new irrigation system in place, she uses gallons of water each day. How many gallons of water does she save in a 30-day period with the irrigation system?

Respuesta :

Rau7star

Answer:

[tex]172\frac{1}{2}[/tex] gallons

Step-by-step explanation:

Considering she waters her plants with 25 1/2 gallons  i.e 51/2

and with the new system, she does it with 19 3/4 i.e 79/4

taking the difference:

[tex]\frac{51}{2} - \frac{70}{4}[/tex] = [tex]\frac{23}{4}[/tex] gallons per day

For 30 days:

30 x [tex]\frac{23}{4}[/tex] = 172.5 or [tex]172\frac{1}{2}[/tex] gallons

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