Porcelain tile is often recommended over ceramic tile because its breaking strength tends to be higher therefore making it more
durable and long lasting. Based on data collected from its production
processes, Crosstiles Inc. determines that the breaking strength of its
most popular porcelain tile is normally distributed with a mean of
400 pounds per square inch and a standard deviation of 12.5 pounds
per square inch. Based on the 68-95-99.7 describe the breaking
strength of the weakest 2.5% of its popular porcelain tile?

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step-by-step explanation:

tried on you are knowing that we can't leave the picture in the graph ok no problem now you need to send it in the question group

fabric (square meters)                   cloaks

7                                                           21

4/3                                                         4

step-by-step explanation:

we are told that harry needs 2 square meters of fabric for every 6 wizard cloaks he makes.

1. first of all we will find how many cloaks can be made from 1 square meter of fabric by dividing 6 by 2.

we can see that 3 cloaks can be made from 1 square meter of fabric. now we will multiply 3 by 7 to find number of cloaks made from 7 square meters of fabric.

therefore, harry will make 21 cloaks from 7 square meters of fabric.

2. let us find how many square meters of fabric will be needed to make 4 cloaks.

first of all we will find fabric needed for 1 cloak by dividing 2 by 6.

we can see that fabric needed for 1 cloak is   square meter. now we will multiply   by 4 to find fabric needed for 4 cloaks.