2 years ago

Why it is very important to follow the steps in solving an equation with 2 or more operations involve?

Mathematics

1 answer:

rusak2 [61]2 years ago

8 0

Yeah but I said the answer is yes because of the color

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A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.

Crank

Answer: 1.25

Step-by-step explanation:

Given: A college-entrance exam is designed so that scores are normally distributed with a mean $(\mu)$ = 500 and a standard deviation $(\sigma)$ = 100.

A z-score measures how many standard deviations a given measurement deviates from the mean.

Let Y be a random variable that denotes the scores in the exam.

Formula for z-score = $\dfrac{Y-\mu}{\sigma}$

Z-score = $\dfrac{625-500}{100}$

⇒ Z-score = $\dfrac{125}{100}$

⇒Z-score =1.25

Therefore , the required z-score = 1.25

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4 years ago

A carpenter needs 36 screws that are 1.5 inches long, 24 screws that are 2 inches long, and 12 screws that are 2.5 inches long.

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Step-by-step explanation:

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3 years ago

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Kelsey measured 1/8 cup of onsona, 3/7 of celery, and 5/9 cup of catrots How many cups of vegetables did Kelsey measure out for

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Answer:

1 1/10 cups.

Step-by-step explanation:

1/8 + 3/7 + 5/9

= 559/504

or approximately 1 1/10 cups.

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3 years ago

How can you use place value and partial products to multiply 2-digit number?

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By multiplying answers separately then the products are then added together. like: 182
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4 years ago

Write the whole numbers that are in a between the pairs<br> a 4 and 8<br> b 12 and 16

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Step-by-step explanation:

student

whole number between 4 and 8 is 5,6 and7

and between 12 and 16 is 13,14 and 15

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3 years ago

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