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torisob [31]
4 years ago
14

The 9th graders are selling tickets to raise money for a class field trip. They are selling student tickets for $5 and adult tic

kets for $9. The 9th graders received a total of $240 from sales. In total, 40 tickets were sold. A) write a system to represent this situation. Be sure to define your variables. B) use your system to determine how many tickets of each type the students sold.
Mathematics
1 answer:
Lubov Fominskaja [6]4 years ago
7 0
For this answer I believe it would be best if you did it on paper
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TWO DVDs and one videocassette tape cost $72. One DVD and two videocassette tapes
BaLLatris [955]

Answer:

dvd cost 36 dollars

casette costs 10.5 dollars

5 0
2 years ago
If cscθ = 1 1/4, cosθ =<br><br> a. 3/4<br> b. 1 2/3<br> c. 3/5<br> d. 4/5
madam [21]

Answer:

we have

cscθ =1 \frac{1}{4}

\frac{h}{p}=\frac{5}{4}

h=5

p=4

b=\sqrt{11 {}^{2}  - 4 {}^{2} }

b=3

now

cosθ=\frac{b}{h}=\frac{3}{5}

<u>c. 3/5</u>

4 0
3 years ago
Find the measure of the arc. Please help!
kolbaska11 [484]

Answer:

The value of mEFD = 214°

Step-by-step explanation:

Given that the measure of the degree of one of the central angles of an inner circle is 146°.

We know that sum of all central angles is 360°.

In other words, in our case

mEFD + 146° = 360°

Thus, we can determine the mEFD using the equation

mEFD + 146° = 360°

so subtracting 146° to both sides

mEFD + 146° - 146°  = 360° - 146°

mEFD = 214°

Therefore, the value of mEFD = 214°

4 0
3 years ago
What will be the new position of the given point (-2, -3) after reflection across
Anna007 [38]

Answer:

Step-by-step explanation: ads

6 0
3 years ago
Read 2 more answers
A card game is played in which the player wins if a face card is drawn​ (king, queen,​ jack) from a deck of 52 cards. If the pla
Over [174]

Answer:

The expected number of wins for the​ player is 2.31

Step-by-step explanation:

No. of face cards = 12

total cards = 52

Probability of getting face card = \frac{\text{No. of face cards}}{\text{Total No. of cards}}

Probability of getting face card = \frac{12}{52}

The player plays 10​ times

Formula : E=np

n = no. of trials = 10

p = probability of success= \frac{12}{52}

E=expected number of wins

E=10(\frac{12}{52})

E=2.307

So,  the expected number of wins for the​ player is 2.31

5 0
3 years ago
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