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BARSIC [14]
3 years ago
6

-5.7+2.6d=-14.02 answer

Mathematics
1 answer:
zavuch27 [327]3 years ago
8 0

<u><em>d=-16/5 is the right answer. </em></u><em> </em>First, you had to multiply by 100 from both sides of the equation. And it gave us -5.7*100+2.6d*100=-14.02*100. Then, you had to refine. And it gave us -570+260d=-1402. Third, you can also add by 570 from both sides of the equation, and it gave us-570+260d+570=-1402+570. Then simplify and it gave us, 260d=-832. Next, you had to divide by 260 from both sides of equation. And it gave us, \frac{260d}{260}= \frac{-832}{160}. And finally, simplify it's should be the right answer. And it gave us the answer is <u><em>d=-16/5 is the right answer. </em></u> Hope this helps! Thank you for posting your question at here on brainly. And have a great day! -Charlie

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3 0
3 years ago
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3 0
2 years ago
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6 0
3 years ago
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Bobby wants to go on a school trip that will cost him $250. He comes up with an equation that represents how much he needs to sa
monitta
Yes, Bobby will have enough money if he saves for 9 weeks. You can find this through either substituting w for 9 in the equation, or solving the equation itself. 

Substituting:

25(9)+30
Substitute w for 9. 

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Simplify. 

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255 is greater than 250, so yes, he will have enough money saved. 


Solving the equation:

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The number of weeks he needs is 8.8. When rounding it up, you get 9. 


4 0
3 years ago
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