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Mariulka [41]
4 years ago
9

you are baking cookies for your class. there are 23 students in your class and you have already baked 12 cookies. Write and solv

e an equation to find the additional number x cookies you need to bake in order to have 2 cookies for each student
Mathematics
1 answer:
8090 [49]4 years ago
4 0
12 + 2x=23 is my guess
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Which price is equivalent to $1.50 for 1 pound of apples?
olga_2 [115]
A. 6 pounds of apples for $9
9/6=1.5=$1.50 per pound
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Please only do 2 through 6
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3 0
3 years ago
Anna went from home to school with the speed 3 km/hour. She ran back home with the speed 6 km/hour.Her sister Olga went to schoo
PIT_PIT [208]
Let:
v = Olga's speed
t = the time Anna spent going to school (3 km/hour)
t/2 = the time Anna spent running back home with speed of 6 km/hour
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In the meantime distance = speed*time and the both made the same distance we can put it as:
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3 0
3 years ago
The stock price for International Business Machines (IBM) historically has followed an approximately normal distribution (when a
olganol [36]

Answer:

0.494 is the probability that on a selected day the stock price is between $186.26 and $192.47.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $188.876

Standard Deviation, σ = $4.6412

We are given that the distribution of stock price is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(stock price is between $186.26 and $192.47)

P(186.26 \leq x \leq 192.47) = P(\displaystyle\frac{186.26 - 188.876}{4.6412} \leq z \leq \displaystyle\frac{192.47-188.876}{4.6412}) = P(-0.5636 \leq z \leq 0.7743)\\\\= P(z \leq 0.7743) - P(z < -0.5636)\\= 0.781 - 0.287 = 0.494 = 49.4\%

P(186.26 \leq x \leq 192.47) = 49.4\%

0.494 is the probability that on a selected day the stock price is between $186.26 and $192.47.

5 0
3 years ago
0.7070707070 is an irrational number
zaharov [31]
False irrationals number have no end with no patterns (example would be pi)
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3 years ago
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