2 years ago

6) Use Distributive Property to simplify the expression below: HELP ASAP THIS WAS DUE LIKE 30 MIN AGO I NEED TO HURRY

Mathematics

2 answers:

antiseptic1488 [7]2 years ago

7 0

Xy + xz -8z ,
you need to multiply negative x by everything in parentheses

Natasha2012 [34]2 years ago

4 0

Answer: xy-6x

Step-by-step explanation:

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777dan777 [17]

To find the average, add the cost of each book to get a total cost, then divide the total cost by the number of books purchased.

Total cost: 32 + 45 + 39 = 116

Average cost: 116 / 3 = 38.67

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54 percent

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Complete the table with the number of sit-ups you have to do sunday so that the mean number of sit-ups per day is 100

marissa [1.9K]

The mean is the average of the numbers.

It is easy to calculate: add up all the numbers, then divide by how many numbers there are.

Let the number of sit-ups you have to do Sunday be x. Then the sum of all sit-ups is

100+65+120+150+90+0+x=525+x.

The number of days is 7.

Thus, the mean is

$\text{mean}=\dfrac{525+x}{7}.$

You know that the mean number of sit-ups per day is 100, equate these two means and solve the equation:

$\dfrac{525+x}{7}=100,\\ \\525+x=700,\\ \\x=700-525,\\ \\x=175.$

Answer: 175 sit-ups

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3 years ago

Jacqueline has $5.65 in nickels and quarters. If she has 45 coins in all, how many nickels does she have?

Semenov [28]

Answer:

28 Nickels

Step-by-step explanation:

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