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polet [3.4K]
3 years ago
5

At the market 5 light bulbs cost 9.85. How much do 7 light bulbs cost?

Mathematics
2 answers:
enyata [817]3 years ago
7 0
Cost = (9.85/5) * 7
=13.79
Leya [2.2K]3 years ago
5 0
The unit rate is $1.97 per lightbulb. Multiply $1.97 by 7 to get 13.79
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Trevor and Marissa together have 26 t shirt to sell if Marissa has 6 fewer t shirts than Trevor find how many t-shirts Trevor ha
Romashka-Z-Leto [24]
1) Set up an equation for the total, with T representing Trevor and M representing Marissa: 

T + M = 26

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M = T-6 

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6 0
3 years ago
How old am I if 400 reduced by 3 times my age is 241? Can I please have an explanation..
OLEGan [10]

Given :

400 reduced by 3 times my age is 241

To Find :

My age .

Solution :

Let, age is x .

So , expressing given condition mathematically , we get :

400-3x=241\\\\3x=400-241\\\\3x=159\\\\x = 53

Therefore, the age is 53 years.

Hence, this is the required solution.

7 0
3 years ago
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