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marishachu [46]
2 years ago
5

How to simplify -5a^2-19a^2-5a-8+12a^2-22-14a-2a?

Mathematics
2 answers:
beks73 [17]2 years ago
5 0
<span> -5a^2-19a^2-5a-8+12a^2-22-14a-2a
first gather all same powers
-5a</span>²-19a²+12a²-5a-14a-2a-8-22
-12a²-21a-30
-3(6a²+7a-+10)
seropon [69]2 years ago
5 0

okay so first let's identify all the like terms in this equation

- 8 & - 22

-5a^2, - 19a^2, 12a^2

-5a, -14a, -2a

we can combine each of these sets of like terms separately and then write them all out together

so combining - 8 and - 22 is - 30

- 5a^2 and -19a^2 is -24a^4, then combining it with positive 12a^2 leaves you with -12a^2

-5a, -14a, - 2a is - 21a

so we have - 30 - 21a - 12a^2 as a finished result

however if your teacher wants you to factor then you have:

3(-7a - 4a^2 - 10)

or

-3(7a + 4a^2 +10)


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Please helppp
tangare [24]

Answer:

Adult: 50 tickets

Child: 34 tickets

Step-by-step explanation:

Let a be the amount of adult tickets

Let c be the amount of child tickets

Equation:

a + c = 84

14a + 9c = 1,006

Step 1: Multiply a + c = 84 with -9, to canceled c.

-9 (a + c = 84)    →  -9a - 9c = -756

14a + 9c = 1006 → 14a + 9c = 1006

Step 2: Combined the 2 equation together, and solved it.

-9a - 9c = -756

<u>14a + 9c = 1006</u>

       <u> 5a</u> = <u>250</u>

        5        5

           a = 50

Step 3: Plug 50 into the one of the equation, and solved it.

a + c = 84 → 50 + c = 84

                  <u>-50         -50</u>

                            c = 34

Answer: Adult tickets (a) = 50 and Child tickets (c) = 34

To check the answer plug the two number into the equation ( Make sure to add 50 for a and 34 for c).

3 0
3 years ago
What is 78% of $650?
yKpoI14uk [10]

Answer:

$507

Step-by-step explanation:

you should use desmos :)

7 0
3 years ago
Read 2 more answers
Zoe is solving the equation 3x – 4 = –10 for x. She used the addition property of equality to isolate the variable term as shown
kherson [118]
3x-4 = -10

3x-4 +4 = -10 +4

3x = -6

then you can divide it :

x = -6 : 3

x= -2
3 0
3 years ago
Help please???????????????
irinina [24]

Answer: 3/4 as a decimal is 0.75


Step-by-step explanation: 0.75 is the percent. so it is 75%

Hope this helps :)

4 0
3 years ago
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In 20 years, Finn will be 3 times as old as he is right now. How old is he right now?​
Bumek [7]
I think it is 60 years old?
3 0
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