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max2010maxim [7]
3 years ago
13

What addition doubles fact can help you solve 4+5

Mathematics
2 answers:
valkas [14]3 years ago
5 0
4+4=8, that's a doubles fact

4+1=5 so
8+1=9
Sindrei [870]3 years ago
3 0
It is 4 + 4 = 8
8 + 1 = 9 so the answer is 9

Can I have brainlist
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400 pounds per 340 square feet” as a rate in simplest form
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400=2*2*2*2*5*5,  340=2*2*5*17

So the product of the shared primes is 2*2*5=20, so divide the numerator and denominator by 40.

(400/20)lbs/(340/20)ft^2

20lbs/17ft^2  or if you prefer

(20/17)lbs/ft^2

(1 3/17)lbs/ft^2 or approximately

1.18 lbs/ft^2



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