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2 years ago

the sum of four times a number and eight is between zero and twelve. find the range of numbers. write a compound inequality.

1 answer:

6 0

Let the number be the variable x

4 times the number is 4x

the sum of 8 and 4 times a number is 28

4x+8=28

4x=28-8

4x=20

x=20/4

x=5

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mamaluj [8]

Answer:

Step-by-step explanation:

(x−a)(x−b)=x2−(a+b)x+ab

Now, this with the third bracket.

(x2−(a+b)x+ab)(x−c)=x3−(a+b+c)x2+(ac+bc+ab)x−abc

But there’s another way to do this, which is easier. Assume the given expression is equal to 0, then, we can form a cubic equation as

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3 years ago

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(3^2+4−2)(2^2−3−4) can you guys please solve this for me please.

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Answer:

-33

Step-by-step explanation:

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3 years ago

Shelia mixed 3 ounces of blue paint with 2 ounces of yellow paint. She decided to create 20 ounces of the same mixture. How many

zimovet [89]

Yellow:blue is a ratio of 2:3, meaning that 2/5 of the desired mixture is yellow. From this, you need to find how much yellow is necessary for 20 ounces. Well, 2/5 of the 20 ounces will be yellow paint, while the other 3/5 will be blue. So she will need 8 ounces of yellow paint to get 20 ounces of the desired mixture. Hope this helps! :)

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3 years ago

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frozen [14]

Answer: x=316 and y=41

Step-by-step explanation:

1. x+y=357

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3 years ago

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Jody has $40 and needs at least $18.25 to buy the scrapbook. Each sheet of paper costs $0.34. how many sheets of paper can she b

photoshop1234 [79]

<h3><u>Question:</u></h3>

Jody is buying a scrap book and designed paper she has 40 dollars and needs at least 18.25 to buy a scrap book each seet of paper cost 0.34 how may sheets of paper can she buy

<h3><u>Answer:</u></h3>

Jody can buy 63 sheets of paper

<h3><u>Solution:</u></h3>

Jody has 40 dollars

Thus, she can spend less than or equal to 40 dollars

She needs at least 18.25 to buy a scrap book

Each seet of paper cost 0.34

Let "s" be the number of sheets of paper

Then,

$18.25+0.34s\leq 40\\\\Subtract\ 18.25\ from\ both\ sides\\\\0.34s \leq 40-18.25\\\\0.34s\leq 21.75\\\\Divide\ both\ sides\ by\ 0.34\\\\s\leq 63.9$

Thus Jody can buy 63 sheets of paper

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3 years ago

the sum of four times a number and eight is between zero and twelve. find the range of numbers. write a compound inequality.​

the sum of four times a number and eight is between zero and twelve. find the range of numbers. write a compound inequality.