(6.72×10^9)÷(3.2×10^2)=2.1×10^7
6.72÷3.2=2.1 and
10^9÷10^2=10^7 {here power is subtracted 9-2=7}
2.1×10^7
Try this option:
answer is 18.
For more information see the attached picture.
70/10= 7
So,
77/10-70/10= 7/10
You need to subtract 7/10 from 77/10 to make 7.
I hope this helps!
~kaikers
Answer:
4.5 Kg
Step-by-step explanation:
Given that 500 gms of dough is required to make one sourdough loaf.
And we need 9 such loaves.
We can find the required weight of dough simply by adding 500 gms , 9 times.
i.e. 500 gms + 500 gms + 500 gms + 500 gms + 500 gms + 500 gms + 500 gms + 500 gms + 500 gms = 4500 gms.
Or we can simply multiply 500 gms by 9 to get 4500 gms.
We know that <em>1 kilogram = 1000 grams.</em>
So, dividing 4500 grams by 1000 to convert into kilogram.
So, the required weight of dough for making 9 sourdough loaves is <em>4.5 kg</em>.