3 years ago

Show how to make a ten to solve 13-7. Write the number sentence

1 answer:

6 0

To subtract 7 from 13 you use the fact that 13 is one ten plus three units, i.e. 13 = 10 + 3. then you can subtract 7 from 10 which is 3, and then add the 3 other 3 units to get 3 + 3 = 6. In this way, you have subtracted 7 from 13 using the fact that 13 is one ten plus 3 units.

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Y_Kistochka [10]

For this case, the first thing we should do is use the following equation:
f (x) = 200 (1.03) ^ x
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log1.03 (300/200) = log1.03 ((1.03) ^ x)
x = log1.03 (300/200)
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