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Dovator [93]
3 years ago
9

1. 6(4x+1)=782. 2(x+10)=60Solve for x​

Mathematics
1 answer:
postnew [5]3 years ago
7 0

Answer:

1. x= -3

2. x= 20

Step-by-step explanation:

sorry if this is wrong,

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3 years ago
Please help math
Naddika [18.5K]
   
\displaystyle\\
15(2a - 2) = 5(a^2 -1) \\  \\ 
30a - 30 = 5a^2-5\\\\
-5a^2 + 30a -30 + 5 =0\\\\
-5a^2 + 30a -25 =0 ~~~~~\Big| \times (-1) \\\\
5a^2 - 30a +25 = 0~~~~~\Big| : 5 \\\\
a^2 - 6a +5 = 0 \\  \\ 
a_{12}= \frac{-b\pm \sqrt{b^2-4ac}}{2a}= \frac{6\pm \sqrt{36-20}}{2}= \frac{6\pm \sqrt{16}}{2}=\frac{6\pm 4}{2}= \boxed{3\pm 2} \\  \\ 
a_1 = 3+ 2 = \boxed{5}\\\\
a_2 = 3-2 = \boxed{1}



8 0
3 years ago
Read 2 more answers
I need help bad I will mark you as king or what every pkz get it right I can’t get it right plz help
Ostrovityanka [42]

Answer:

d=6c it looks like. good luck

4 0
3 years ago
What's 676 divided by 13 in long division? I need step by step cause you have to drag the numbers.
Galina-37 [17]

Answer: 52

Step-by-step explanation: Not much work with this one but hope this helps :)

3 0
3 years ago
A stack of 5 books weighs 9.5 pounds. If each book weighs the same amount, how much does each book weigh?
hjlf

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Step-by-step explanation:

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So, Each book weighs about 14.5.

8 0
3 years ago
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