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alexgriva [62]
3 years ago
12

Average of 766 and 878

Mathematics
1 answer:
Greeley [361]3 years ago
7 0
(766+878)÷2=1644÷2=822
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The answer would be d. (1,3.5)
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19. Find an equation of the parabola that satisfies the given conditions.
GalinKa [24]

Here, the focus of the parabola is (2,0) and directrix is x=−2.

So, equation of parabola will be y2=4ax

Here,a=2.So, Equation becomes,

y2=4∗2x⇒y2=8x, which is the required equation of parabola.

6 0
2 years ago
27% of 16.<br> .27 x 16= 4.32<br><br> how do you use ESTIMATION to check your answer?
nikitadnepr [17]

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the side is in the shape of a rectangle with an area of 437 square centimeters the length of the rectangle is 19 centimeters wha
miss Akunina [59]
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A = L*W
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5 0
3 years ago
student tickets for the football game cost $12 each and adult ticket cost $20 $1,720 was collected for the 120 ticket sold at la
erik [133]

Answer:

85 student tickets and 35 adult tickets were sold.

Step-by-step explanation:

Howdy!

We know that student tickets cost $12, adult ticket cost $20 and 120 tickets were sold.

So:

$12×A + $20×B = $1,720. Where A and B are the number of student tickets and adult tickets sold, respectively.

Given that 120 tickets were sold in total, we have that:

A + B = 120

So the system of equations to be solved is the following:

$12×A + $20×B = $1,720                    (1)

A + B = 120                                          (2)

Solving for 'A' in equation (2) we get:

A = 120 - B

Substituting this value into equation (1) we get:

$12×(120 - B) + $20×B = $1,720

Solving for 'B' we have:

$12×(120 - B) + $20×B = $1,720

$1,440 - $12×B + $20×B = $1,720

$1,440 + $8×B = $1,720

$8×B = $1,720 - $1,440

$8×B = $280

B = 35 tickets.

Given that B = 35, then A = 120 - 35 = 85 tickets.

So 85 student tickets and 35 adult tickets were sold.

4 0
3 years ago
Read 2 more answers
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