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just olya [345]
3 years ago
15

How long would it take to lay 8 rows of 18 bricks each at a rate of 4 bricks per minute

Mathematics
2 answers:
Anna35 [415]3 years ago
8 0
8 times 18 is 144. then take that and divide it by 60 seconds which equals a minute. your answer is 2 minutes and 40 seconds
erastovalidia [21]3 years ago
3 0
Do 8 times 18 and that equals 144 and then divide that by 4 and that is 36 so your answer is 36
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3 years ago
Help if correct will give you brainliest
Scilla [17]

Answer:

a makes sense to me

Step-by-step explanation:

8 0
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Can someone please give me the right answer.
MrRa [10]

Answer:

Y=106

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Step-by-step explanation:

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180° minus the 65° gives you 115° when you solve for X and solve for Y Use the 115° as shown in the photo below

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3 years ago
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vova2212 [387]
The correct answer to this question is B.
8 0
3 years ago
A bakery wants to determine how many trays of doughnuts it should prepare each day. Demand is normal with a mean of 5 trays and
Alexeev081 [22]

Answer:

4 trays should he prepared, if the owner wants a service level of at least 95%.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 5

Standard Deviation, σ = 1

We are given that the distribution of demand score is a bell shaped distribution that is a normal distribution.

Formula:

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

P(X > x) = 0.95

We have to find the value of x such that the probability is 0.95

P(X > x)  

P( X > x) = P( z > \displaystyle\frac{x - 5}{1})=0.95  

= 1 -P( z \leq \displaystyle\frac{x - 5}{1})=0.95  

=P( z \leq \displaystyle\frac{x - 5}{1})=0.05  

Calculation the value from standard normal z table, we have,  

\displaystyle\frac{x - 5}{1} = -1.645\\x = 3.355 \approx 4  

Hence,  4 trays should he prepared, if the owner wants a service level of at least 95%.

3 0
3 years ago
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