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IgorC [24]
3 years ago
7

Simone buys slices of pizza that cost $1.25 each. She spends a total of $11.25 on them. Which

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
6 0
Well, I can’t see your choices, but hopefully one looks something like this:

1.25x = 11.25
Or
x = 11.25/1.25

Feel free to put more information in the comments, and I will help.
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On Monday 1/9 of the enrolled students in a school were absent. There were 4,512 students present how many students are enrolled
tensa zangetsu [6.8K]

Answer:6599 i think

Step-by-step explanation:

5 0
3 years ago
+5+4+2-54+39+0+020+3+4+4+2+5+6+7+7+8+8=
lesya [120]

Answer:70

Step-by-step explanation:

8 0
2 years ago
If AD = 5x + 3, TD = x + 27, what is AD?
Eddi Din [679]

The question is incomplete, but if we assume that you mean AD = TD , we have :

AD = TD ===》 5x + 3 = x + 27

===》 4x = 24

===》 x = 6

_________________________________

AD = 5 × ( 6 ) + 3

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7 0
3 years ago
A player at a fair pays Rs. 100 to roll a dice. The player receives Rs. 50 if the number of dots facing up is equal to 5, Rs. 20
FinnZ [79.3K]

Answer:

The dice has 6 options:

if the outcome is 5, player wins 50

if the outcome is 6, player wins 200

if the outcome is another number, the player does not win anything.

Now, remember that the expected value can be written as:

E = ∑xₙpₙ

where xₙ is the event n, and pₙ is the probability of that event.

for a dice, the probabilty for each number is 1/6

The expected value is:

E = (1/6)*(0 + 0 + 0 + 0 + 50 + 200) = 41.66

The expected gain will be E - 100 (because the player pays 100 in order to play)

Then the expected gain is:

G = 41.66 - 100 = -58.33

The standard deviation can be written as:

s = √( ∑(x - x)^2/n)

where x is the mean, in this case the mean is:

(200 + 50 + 4*0)/6 = 41.66  and n = 6.

s = √( (1/6)*(4*(0 - 41.66)^2 + (50 - 41.66)^2 + (200 - 41.66)^2) ) = 73

So we have a lot of standard deviation on Y.

5 0
3 years ago
5 points
noname [10]

Answer:

A. y=10x+50

Step-by-step explanation:

you only add $50 once because it is the "become a member fee", you put a X next to the 10 because its monthly. (so you can replace the variable with any number if needed)

6 0
3 years ago
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