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Allushta [10]
3 years ago
7

Cost of tickets is 90. 7 adult tickets and 12 kids tickets. Kids tickets 2/3 the adult ticket. How much are adult tickets

Mathematics
1 answer:
STatiana [176]3 years ago
4 0
7x+12y=90
y = 2/3x

15x=90
x = 6
 6 dollars
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6 0
3 years ago
Read 2 more answers
If g(x)=4x-6 then g^-1(x)=?<br> (1) -4x+6<br> (2)-1/4x+1/6<br> (3)1/4x+3/2<br> (4)1/4x+6
kati45 [8]

Given:

g(x)=4x-6

To find:

The function g^{-1}(x).

Solution:

we have,

g(x)=4x-6

Put g(x)=y.

y=4x-6

Interchange x and y.

x=4y-6

Isolate y.

x+6=4y

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Substitute y=g^{-1}(x).

g^{-1}(x)=\dfrac{x+6}{4}

g^{-1}(x)=\dfrac{x}{4}+\dfrac{6}{4}

g^{-1}(x)=\dfrac{x}{4}+\dfrac{3}{2}

Therefore, the correct option is (3).

4 0
3 years ago
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