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vazorg [7]
2 years ago
9

Solve the inequality 3x-9<12

Mathematics
2 answers:
Vesnalui [34]2 years ago
3 0

Answer:

x=7

Step-by-step explanation:

Have a great day :)

Helga [31]2 years ago
3 0

Answer:

x < 7

Step-by-step explanation:

3x - 9 < 12     add 9 for both sides.

3x < 21      divide both sides by 3.

x < 7.

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Flossie signs a check payable to Glenn and gives it to him, leaving the amount blank but authorizing him to fill it in for $1,00
Black_prince [1.1K]

Answer:

d. $1,500.

Step-by-step explanation:

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7 0
3 years ago
Can somebody help and show there work I don’t understand this PERIOD. I need help ASAP
iren2701 [21]
In general to be able to add or subtract fractions you need to have the same denominator so that you can add the numerators.

The easiest way to find the same denominator is to identify the lowest common denominator (LCD).

You can find the LCD by finding the prime factors of the denominators in question and multiplying them all together. If the denominators share a prime factor, only multiply it once.

Sometimes you can just eyeball the numbers to find the LCD, which might be faster.

For #W we need to find the LCD of 10 and 6, so prime factorize:

10 = 2 x 5
6 = 2 x 3

LCD = 2 x 5 x 3 = 30

The LCD is 30, so we need to change the fraction to reflect that. Remember, what you do to the denominator you need to do to the numerator as well. So:

-9/10 becomes -27/30 (both multiplied by 3)
-1/6 becomes -5/30 (both multiples by 5)

Now you can easily add:

-27/30 + (-5/30) = -32/30

In summary:
Step #1: find LCD (prime factor or eyeball)
Step #2: multiply the numerator of each fraction by the factor needed to obtain the LCD in that denominator
Step #3: add the fractions now that they have the LCD

Here’s the solution to #G:

-¾ + (-7/12)

Step #1:

4 = 2 x 2
12 = 2 x 2 x 3

LCD = 2 x 2 x 3 (count each unique prime factor once)

Step #2:

-¾ becomes -9/12 (both multiplied by 3)
-7/12 stays the same (it already has the LCD)

Step #3:

-9/12 + (-7/12) = -16/12

Let me know if you have any questions. Try to work though the others!
8 0
2 years ago
Read 2 more answers
4x^2 - y^2 - 2x- y<br><br> Factorise each of the following expressions completely
Sergeu [11.5K]

Answer:

(2x + y)(2x - y - 1)

Step-by-step explanation:

4x² - y² - 2x - y

4x² - y² is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

4x² - y²

= (2x)² - y²

= (2x - y)(2x + y)

expression is now

(2x - y)(2x + y) - (2x + y) ← factor out (2x + y) from each term

= (2x + y)(2x - y - 1)

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the measures of two consecutive angles in a parallelogram are in the ratio 4:8. what are the measures of the four angles of the
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Step-by-step explanation:


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