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erma4kov [3.2K]
3 years ago
8

Twenty students bought tickets for a school party. All of the money received for these 20 tickets was used to purchase beverages

. Then, an additional 10 students bought tickets. Rather than use this additional money to buy more refreshments, all 30 students received a $3.00 refund. How many dollars were used to buy beverages?​
Mathematics
2 answers:
Charra [1.4K]3 years ago
3 0

Answer:

87

Step-by-step explanation:

joja [24]3 years ago
3 0

Answer:

$87 were used on beverages

Step-by-step explanation:

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A family is building a new house on a rectangular lot of land. the lot measures 7x by 11x and the house will be 2x by 3x. How mu
zubka84 [21]
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What is the greatest value in the range of f(x) = x^2 - 3 for the domain (-3,0,1,2)
bezimeni [28]

Answer:

f(-3)=6 is the greatest value in the range of f(x)=x^2-3 for the domain (-3,0,1,2)

Step-by-step explanation:

Given that the function f is defined for range by f(x)=x^2-3 for the domain (-3,0,1,2)

To find the greatest value in the range of f(x)=x^2-3 for the domain (-3,0,1,2):

f(x)=x^2-3 for the domain (-3,0,1,2)

That is put x=-3 in the given function f(x)=x^2-3 we get

f(-3)=(-3)^2-3

=3^2-3

=9-3

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Therefore f(-3)=6

put x=0 in the given function f(x)=x^2-3 we get

f(0)=(0)^2-3

=0-3

=-3

Therefore f(0)=-3

put x=1 in the given function f(x)=x^2-3 we get

f(1)=(1)^2-3

=1-3

=-2

Therefore f(1)=-2

put x=-3 in the given function f(x)=x^2-3 we get

f(2)=(2)^2-3

=4-3

=1

Therefore f(2)=1

Comparing the values of f(-3)=6,f(0)=-3,f(1)=-2,and f(2)=1 to find the greatest value in the range of f(x) = x^2 - 3 for the domain (-3,0,1,2) we get

Therefore f(-3)=6 is the greatest value in the range of f(x)=x^2-3 for the domain (-3,0,1,2)

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3 years ago
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