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Snezhnost [94]
3 years ago
13

Carey High School had a banquet as a fundraiser for a new turf field. They sold 360 tickets for a total of $8,820. The expenses

for the banquet were $9,378. What were the results of banquet?
Mathematics
1 answer:
luda_lava [24]3 years ago
7 0
If the high school sold $8,820 worth of tickets, but had a cost of $9,378, they lost a total of $558
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MathWizard likes to play a fun number trick on her friends. She tells them to think of a number. She then tells them to subtract
pantera1 [17]
Follow the steps for 8
(1) 8 * 2 = 16
(2) 16 * 5 = 80
Note: you could just combine the first 2 steps and multiply by 10 to start with. Much easier: just add a 0 onto 8.
(3a) 12 * 8 = 96
(3b)  96 - 24 = 72
(3c) So you want to take 1/2 72 which is 36
(4)   36 + 80 = 116

Let's try this  with x.
(2) x * 10 = 10x
(3) 1/2 (12*x - 24)
(3) 10x + 1/2 (12x - 24)
(3) 10x + 6x - 12
(4) 16x - 12

Problem B
Math wiz would add 12 to the number given to her and then divide by 16. That's pretty complicated to do quickly. 

For example Let the original number be 1221
(2) Multiply by 10 12210
(3) Take 1/2 the difference between 12 times 1221 and 24 which is 1/2(14652 - 24) = 7314
And add this result to 12210 
7314 + 12210 = 19524

Tell her the number. She has to add 12
19524 + 12 = 19536  And divide by 16
to get 1221. 
Pretty complex even for a wizard.
 

6 0
4 years ago
A box contains four blue and eight red balls. Jim and Jack start drawing balls from the box, respectively, one at a time, at ran
aleksandrvk [35]

Answer:

the probability that Jack draws the blue ball is 0.38539

Step-by-step explanation:

Given the data in the question;

box contains

blue balls = 5

red balls = 8

Jim and Jack start drawing balls from the box, respectively, one at a time, at random, and without replacement

Now,

on the first attempted;

⇒ ( 8/13) × ( 5/12) = 10/39  

on the second attempt;

⇒ ( 8/13 ) ( 7/12) ( 6/11 ) ( 5/10 ) = 14/143

on the third attempt;

⇒ ( 8/13 ) ( 7/12) ( 6/11 ) ( 5/10 ) ( 4/9 ) ( 5/8 ) = 35/1287

on the fourth attempt;

⇒  ( 8/13 ) ( 7/12) ( 6/11 ) ( 5/10 ) ( 4/9 ) ( 3/8 ) ( 2/7 ) ( 5/6 ) = 5/1287

so we add everything;  

⇒ 10/39 + 14/143 + 35/1287 + 5/1287

= 0.38539

Therefore, the probability that Jack draws the blue ball is 0.38539

5 0
3 years ago
(3 sqrt-1)-(9 sqrt-16)
Cerrena [4.2K]
I hope this helps you

7 0
4 years ago
Sandra has 46 fewer coins than Martha. Sandra has 57 coins . how many coins does Martha have?
hoa [83]
M = 57+46
(Since she has 46 less then martha, you know to find how many martha has you have to add 46!)

M=103

So martha has 103 coins!
6 0
3 years ago
Last year, a construction worker had a gross income of 29,700 of which he contributed 7% to his 401 (k) plan. If he got paid mon
BaLLatris [955]
0.07(29700)/12 = 173.25
4 0
4 years ago
Read 2 more answers
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