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laiz [17]
3 years ago
8

What is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 65° and its congruent sides

each measure 15 cm?
Mathematics
1 answer:
juin [17]3 years ago
7 0
Since base angles of an isosceles triangle are congruent the other base angle is also 65. since the three angles together sum to 180 thst leaves 180-65-65=180-130 = 50 degrees for the vertex angle
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A 6000​-seat theater has tickets for sale at ​$25 and ​$40. How many tickets should be sold at each price for a sellout performa
Lena [83]

Step-by-step explanation:

Let x be the amount of tickets sold for $25 and y be the amount of tickets sold for $40, since there are 6000 seats theatre then;

x+y = 6000 .............. 1

If x tickets cost $25 and y tickets are sold for $40 with total revenue of ​$174,000, then;

25x + 40y = ​174,000................ 2

From 1, x = 6000-y ............ 3

Substitute equation 3 into 2:

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25(6000-y) + 40y = ​174,000

150,000-25y + 40y = 174,000

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<em>Hence 4400 $25 tickets and 1600 $40 tickets must be sold to generate a revenue of $174,000</em>

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3 years ago
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goblinko [34]
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6 0
2 years ago
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the correct question in the attached figure

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Answer:

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6 0
3 years ago
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