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3241004551 [841]
2 years ago
7

3a(4a – 5) - 4a (6 – 10a)

Mathematics
1 answer:
nikklg [1K]2 years ago
6 0

Answer:

52a² - 39a

Step-by-step explanation:

Step 1: Write out expression

3a(4a - 5) - 4a(6 - 10a)

Step 2: Distribute

12a² - 15a - 24a + 40a²

Step 3: Combine like terms (a²)

52a² - 15a - 24a

Step 4: Combine like terms (a)

52a² - 39a

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Aisha just received a paycheck from her new job she spends some of it buying music online and saves the rest in a bank account h
postnew [5]
Set y equal to 25 because this is the amount of money Aisha wants to save. This gives you 25 = 50-1.99x. Now we can solve for x, which is the variable. First, subtract 50 from both sides so that you can get the variable, x, by itself. After subtracting 50 from both sides, you are left with -25 = -1.99x . If it is easier for you, you can put the numbers on opposite sides so it reads -1.99x = -25 . Now divide both sides by -1.99 so that x is by itself. So -1.99x ÷-1.99 = 1x which is equal to just x and -25÷-1.99 = about 12.56, which is a decimal. (Remember that when you divide a negative number by a negative number, it becomes a positive number) Finally we have x = 12.56 (or 1x = 12.56) with 12.56 being equal to the number of songs Aisha can buy if she also wants to save money in her bank account. However, nobody can buy only .56 or part of a song. Round down to the nearest whole number, which is 12. This is how many songs she can buy and it makes sense because it is 12 entire songs, not 12 and just the chorus of a song. If you want to check, you can plug in 12 for x and she shouod have a little more than $25 in her bank account. So Aisha can buy 12 songs is she wants to save $25. I hope this helped :)
3 0
3 years ago
Pls help me this is due today
Dominik [7]

Answer:

35.

Step-by-step explanation:

3+5 = 8, 7 goes into 35 5 times. Therefore its 35

3 0
2 years ago
Read 2 more answers
Factor out the greatest common factor.<br> 30t2u + 12tu2 + 24tu
Alexandra [31]
First you can combine 30tu^2 and 12tu^2 because they both have tu^2

So it would be 42tu^2 + 24tu

The answer is
6tu ( 7tu + 4 )



7 0
3 years ago
(9-a+5a)/c (a=6,c=9)
SIZIF [17.4K]
\frac{9-a+5a}{c} = \frac{9-(6)+5(6)}{(9)}= \frac{3+30}{9} = \frac{33}{9} = \frac{11}{3}
7 0
3 years ago
Which graph represents the solution set of this inequality?<br><br> please help!!!
miv72 [106K]

Answer:

C is the correct answer due to two-step inequality process

Step-by-step explanation:

Your inequality is: 5a + 18 < -27

First,  you must remember that the < or > shall not be shaded in.

You could automatically eliminate answer A.

Now you need to do two-step inequalities which is the same thing as two-step equations but with an inequality sign.

5a + 18 < -27

5a < -27-18

5a < -45

**Now, here's something important: If you are multiplying with negatives while dealing with inequalities you must switch the sign to its opposite.

-9 > a

You need to find a number line that has numbers less than -9. It could be -10, -11, -12, -122, etc.

C is the correct answer.

3 0
2 years ago
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