2.
the piney creek swim club is preparing for the opening day of the summer season. the pool holds 22,410 gallons of water, and
water is being pumped in at 540 gallons per hour. the swim club has its first practice in 42 hours. will the pool be full in time?
explain your answer.

answer:

step-by-step explanation:

1. you have the following expression:

3. the denominatoir cannot be zero, so, you must find its roots:

factorizing it, you obtain:

  then:

4. therefore, the values that are discontinuity of   are:

so, is a semi-circle, half a circle, recall a circle has a total of 360°, so half of that will be 180°.

the diameter of that circle is 10, so its radius is half that, or 5.

answer:

a+c =11

a +3c = 19

a =7   and c = 4

step-by-step explanation:

let a = price of one adult

c = price of one child

we know one adult and one child = 11

a+c =11

mrs smith and 3 children spent 19

a +3c = 19

we have 2 equations and 2 unknowns

a+c =11

a +3c = 19

multiply the first equation by -1 so we can eliminate a

-a-c=-11

a+3c=19

2c = 8

divide by 2

2c/2 = 8/2

c=4

each child equals 4 dollars

now we need to find a

a + c= 11

a+4 = 11

subtract 4 from each side

a+4-4 = 11-4

a = 7

the adult is 7