Find 1722 divided by 6 then estimate to check if your answer is reasonable

2 answers:

7 0

The answer was 287. But if you want to estimate. Estimating meaning calculate the answer as if you were to say I have 13 candy bars i wanted to give everyone of my 3 friends equal amounts without including yourself you would have to give everyone 4 candy bars and have one left over in which you could keep it for yourself or give everyone 4 pieces of your 12 piece candy bar.
If your estimating that it would have to be 290 which is a reasonable answer because the 7 in the ones place is closer to 10 then 0

Whitepunk [10]3 years ago

4 0

When you divide 1722 by 6 you get 287 so it's not a repeating number so if you estimate 287 to 290 then you get 1740 so your answer is 287.

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HACTEHA [7]

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<u>Solution:</u>

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$\Rightarrow0.5\text{ lbs }- 1.5\%$

$\Rightarrow x+0.5\text{ lbs }- 100\%$

On writing the proportion,

$\Rightarrow\dfrac{0.5}{x+0.5}=\dfrac{1.5}{100}\\ \\\Rightarrow0.5\cdot 100=(x+0.5)\cdot 1.5\\ \\\Rightarrow50=1.5x+0.75\\ \\\Rightarrow1.5x=50-0.75\\ \\\Rightarrow1.5x=49.25\\ \\\Rightarrow x=\dfrac{49.25}{1.5}\approx 32.833\ lbs$

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vitfil [10]

I was confused at first until I realized that you'd shared not one, not two, but three questions in one post. would you please post just one question at a time to avoid this.

I'll focus on your second question only: Solve <span>3 + |2x - 4| = 15.

Subtr. 3 from both sides. Result: |2x - 4| = 12

Divide all terms by 2, to reduce: |x - 2| = 6

Case 1: x-2 is already +, so we don't need | |:

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Case 2: x-2 is negative, so |2x-4| = -(2x-4) = 6

Then -2x + 8 = 6. Subtr. 8 from both sides: -2x = -2

Div both sides by -2: x = 1 (second answer)

Be sure to check these results by subst. them into the original equation.

Please post your other questions separately. Thanks and good luck!

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