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3 years ago

What is the value of the rational expression below when x is equal to 4

Mathematics

2 answers:

Tomtit [17]3 years ago

4 0

$\cfrac{x+20}{x+4}= \cfrac{4+20}{4+4}= \cfrac{24}{8}= 3$

Zanzabum3 years ago

3 0

$\displaystyle \frac{4+20}{4+4}= \frac{24}{8}=3$

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Ben has a collection of 240 baseball cards. Of these cards, 30% once played

Luda [366]

Ok so lets start off with calculating the percentage. We have 240 cards so lets find 25% of them so lets use 240 times .25 we get 60 cards then take away 240 - 60 = 180. Next we do the 30% so 240 times .30 would be 72 so take away 180 from 72 thats 108. So there are 108 Houston Astros Cards.

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3 years ago

Please see attached image and help with these absolute value problems - thank you

Novay_Z [31]

Answer:

{-infinity, infinity}

no solution

Step-by-step explanation:

|x| +15≥4

Subtract 15 from each side

|x| +15-15≥4-15

|x| ≥-11

This is always true so x can be and real number

{-infinity, infinity}

-2|5x+3| = 8

Divide by -2

-2/-2|5x+3| = 8/-2

|5x+3| = -4

This can never happen because absolute values are zero or greater

no solution

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3 years ago

Use long division to convert 36\75 to a decimal

REY [17]

I’ll help....

0.48 is the answer

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3 years ago

Read 2 more answers

Simplify 15(2/5+1 1/3)+3

loris [4]

So for order of operations you start inside the parentheses and in order to add the insides you will need a common denominator which would be 15 on the bottom. So for 2/5 it would be 6/15 and for 11/3 would be 55/15 and then added together it would be 61/15. so then you would multiply and get 15(61/15). the 15 in the numerator will cancel with the denominator leaving only 61 and then the final step would be adding the 3 to 61 and the final answer will be 64

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3 years ago

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11) If A = {19, 20, 21, 24} and B = {17, 19, 20, 22), list the elements of A U B.

Elodia [21]

Answer:

A U B = {17, 19, 20, 21, 22, 24}

Step-by-step explanation:

The symbol U is the union symbol, which denotes the union of two sets.

This means that given two sets A and B, the expression

A U B

indicates all the elements that belong to either set A or set B.

In this problem, we have the following two sets:

A = {19, 20, 21, 24}

B = {17, 19, 20, 22}

We can therefore list all the elements belonging to either set A or set B, they are:

17, 19, 20, 21, 22, 24

So, the expression A U B indicates the set:

A U B = {17, 19, 20, 21, 22, 24}

3 0

3 years ago