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Likurg_2 [28]
3 years ago
5

Your school is planning a fundraising dinner. The expense for this event must not exceed $2,475.00. The team organizing the even

t has calculated that the cost per adult guest will be $18.00 and the cost per child guest will be $9.00. The venue can hold no more than 150 guests.
a. Write a system of inequalities that represents this situation.
Mathematics
2 answers:
max2010maxim [7]3 years ago
7 0
18 per adult, 9 per child total equals 2,475,00 and the hold of guest is 150
frez [133]3 years ago
6 0
X is the number of adults attending the event
<span>y is the number of children attending the event. </span>

x + y <= 150 is one equation.
<span>18x + 9y <= 2475 is the other equation. </span>

x >= 0 is another equation that is implied because the number of adults can't be less than 0.

<span>y >= 0 is another equation for the same reason as in x >= 0. </span>

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Your friend has built the skate board ramp shown in the figure with sides of 16 in., 63 in., and 65 in. that he claims has dispr
nexus9112 [7]
The friend is wrong - According to the Pythagorean Theorm, if c is the hypotenuse and a and b are opposite sides then  c^{2} = a^{2}  +  b^{2} 
if c=65 inches, a=16 inches and b = 63 inches, then
 65^{2} =16 ^{2} +  63^{2}
right hand side of the equation = 256 + 3969 = 4225
left hand side of the equation = 65^{2}= 4225
So we see, left hand side = right hand side
Hence the theorm is proved.




5 0
3 years ago
Calculate the expected value E(X) of the given random variable X. X is the higher number when two dice are rolled, or the common
Sati [7]

Answer:

4.4722

Step-by-step explanation:

The following table shows the 36 elements of the sample space of the experiment

\left[\begin{array}{cccccccc}&1&2&3&4&5&6\\--&--&--&--&--&--&--\\1\;|&1&2&3&4&5&6\\2\;|&2&2&3&4&5&6\\3\;|&3&3&3&4&5&6\\4\;|&4&4&4&4&5&6\\5\;|&5&5&5&5&5&6\\6\;|&6&6&6&6&6&6\end{array}\right]

From this table we can compute the probabilities :

P(X = 1) = 1/36

P(X = 2) = 3/36

P(X = 3) = 5/36

P(X = 4) = 7/36

P(X = 5) = 9/36

P(X = 6) = 11/36

So the expected value equals

1P(X=1)+2P(X=2)+3P(X=3)+4P(X=4)+5P(X=5)+6P(X=6) =

= 1/36 + 6/36 + 15/36 + 28/36 + 45/36 + 66/36 = 161/36 =  

4.4722

7 0
2 years ago
-8x+32=4(-2-4x)<br>What does X equal ​
marshall27 [118]

Answer:

x = - 5

Step-by-step explanation:

Given

- 8x + 32 = 4(- 2 - 4x) ← distribute parenthesis on right side

- 8x + 32 = - 8 - 16x ( add 16x to both sides )

8x + 32 = - 8 ( subtract 32 from both sides )

8x = - 40 ( divide both sides by 8 )

x = - 5

7 0
2 years ago
How can you evaluate this expression?|18| =
Svetllana [295]
That is just absolute value, basically what it means is take off whatever sign there was attached to it (such as a negative sign)
7 0
3 years ago
Read 2 more answers
write a numerical expression to represent "20 minus the product of 5 and 2. then evaluate your expression. PLEASE HELP I DON'T H
Shalnov [3]

Answer:

10

Step-by-step explanation:

20-(5×2)

5×2=10

20-10=10

6 0
2 years ago
Read 2 more answers
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