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trapecia [35]
3 years ago
15

Help with all please!

Mathematics
1 answer:
babunello [35]3 years ago
6 0
I'll do 14 and 18, and you can apply those techniques for the other problems!

For 14, we get 30*(1/10^8). This means that you move the decimal place in 00.0000030.0 seven places to the left, resulting in 0.00000300

For 18, we can use the associative property of multiplication to get 
5*3.5*10^3*10^(-1)=17.5*10^2. We get 10^2 by adding 3 and -1 up. Since it's positive 2, we simply move the decimal 2 places to the right to get 1750
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Solve 5w + 3 = 3w + 10
OverLord2011 [107]
X=7/12
Alright so let's solve this! :)
••• Subtract 3w from both sides.
<span><span><span><span>5w</span>+3</span>−<span>3w</span></span>=<span><span><span>3w</span>+10</span>−<span>3w</span></span></span><span><span><span>2w</span>+3</span>=10
</span>••• Subtract 3 from both sides.
<span><span><span><span>2w</span>+3</span>−3</span>=<span>10−3</span></span><span><span>2w</span>=7
</span>••• Divide both sides by 2.
<span>2w/2</span>=<span>7/<span>2
</span></span>=<span>7/2
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3 years ago
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You need a caculater that is what you need tho

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Step-by-step explanation:

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Thanks for you help btw thanks​
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Answer:

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Step-by-step explanation:

you're very welcome

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