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Allisa [31]
3 years ago
10

Shawna, Dexter, and Tilana are solving the equation -2.5(5-n)+2=15. Shawna says, “I can begin by dividing each side of the equat

ion by –2.5 to get 5-n-2/2.5=-15/2.5." Dexter says, “I can begin by distributing -2.5 to get -12.5+2.5n+2=15." Tilana says, “I can begin by multiplying each side of the equation by -1/2,5 to get 5-n-0.8=-6." Which students are correct?
Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
6 0
Shawna and Dexter are both correct.
I hope this helps you
laila [671]3 years ago
4 0
Hi!
Shawna is correct because since it's multiplied to the  5-n you have to do the opposite which is division. 
Dexter is also correct because after distributing you can continue solving, there is nothing wrong with that. 
Hope this helps!
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3 years ago
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insens350 [35]

Answer:

4/5 or 0.8

Step-by-step explanation:

1/3x = 5/12

<em>cross</em><em> </em><em>multiply</em>

(12×1) = (5×3x)

<em>divide</em><em> </em><em>through</em> <em>by</em> <em>1</em><em>5</em>

x = 12/15

x = 4/5 <em>o</em><em>r</em><em> </em>0.8

3 0
3 years ago
a trail is 5 miles long. carlos walks 2/3 of the trail and runs the rest. how many miles does carlos walk?
lana [24]

Answer:

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Hope it helps

8 0
3 years ago
4. Owen and his family are discussing how to pay for his college education. The cost of tuition at the college that Owen wants t
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Answer:

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