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To put a number into scientific notation, you multiply it by a power of 10 that will make it a digit 1-10.
As you can see, we can divide by 10, or multiply by 1/10 to get us to 1.3, which is between 1 and 10. How would we get 1.3 to 13? We would multiply by 10!
This gives us our answer below.
1.3(10
)
I hope this helps!
B. 90/360, because this is 1/4 from circle. It's even shown in the picture.
Example: If you take a protractor at 180°, then if you mirror it, then 360° will comeout, i.e. a circle.
He needs 4 eggs, 6 divided by 3 it 2, and 2 times 2 is 4
Here are three ratios
1 6/7
2 120/140
3 60/70
1/7 x 28 = 4 yellow balls
5/7 x 28 = 20 white balls
28 - (20+4)
= 28 - (24)
= 4
4 of the balls are green
