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2 years ago

12) The school that Danielle goes to is selling tickets to a choral performance. On the first day of

Mathematics

1 answer:

zmey [24]2 years ago

3 0

Answer:

Senior citizen tickets = $9

Student tickets = $11

Step-by-step explanation:

We begin by converting these into simultaneous linear equation;

Senior citizen tickets = a

Student tickets = b

5a + 9b = 144

14a + 6b = 192

5a = 144 - 9b

a = 144/5 - 9b/5

a = 28.8 - 1.8b

We now substitute this into the first equation

14(28.8 - 1.8b) + 6b = 192

403.2 - 25.2b +6b = 192

-19.2b = 192 - 403.2

b = -211.2/-19.2

b = 11

Put the value of b into either equation

5a + 9b = 144

5a + 9(11) = 144

5a +99 = 144

5a = 144-99

5a = 45

a = 9

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Hello!

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3 years ago

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prohojiy [21]

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2 years ago

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Mademuasel [1]

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2 years ago

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Ivenika [448]

I don't have a clue what this a0 at the right stands for, but if we neglected it, we can solve the problem.
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3 years ago

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mezya [45]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers