Pre-orders for the year cost $38 eac, while full pricce costs $45 each. if 24 students in mr. hillmans homeroom purchased yearbooks for a total of $975, how many students pre-ordered and how many bought their yearbook at full price ?

15  students pre-ordered and 9  students bought their yearbook at full price.

Step-by-step explanation:

Let x be the number of students pre-ordered \and y be the number of students  bought their yearbook at full price .

As per given , we have

Pre-orders for the year cost $38 each, while full price costs $45 each.

If 24 students in Mr.Hillmans homeroom purchased yearbooks for a total of $975.

i.e.  ...(i)

 ...(ii)

Multiplying equation (i) by 38 , we get

 ...(iii)

Subtracting (iii) from (ii) , we get

Put value of y in (i) , we get

Hence, 15  students pre-ordered and 9  students bought their yearbook at full price.

4 + 5 7/9= 9 7/9

step-by-step explanation:

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation: