Here are examples which will explain:
5 x 10= 50 therefore what we did here was 5.0 and we just moved the decimal to the right by making it a bigger number because it is multiplication
6x100= 600, here we also moved the decimal to the right 2 times because there are 2 zeros
7x 1000= 7000 we moved the decimal 3 times to the right because it has 3 zeros
Now for division
If we do 5 divided by 10 that would be 0.5 because there is one 0 and that means we move the decimal to the left once.
6 divided by 100= 0.06 we moved the decimal to the left 2 times because there are 2 zeros so basically in conclusion we do the same thing in division and multiplication with 10,100,1000,10000 but we just move the decimal to the left in division and move decimal to the right in multiplication.
Hope that helps!
Answer:
Step-by-step explanation:
-3(2)(-4)=24
24+4(2)=32
32-3=29
Answer:
Dave worked 60 hours.
Step-by-step explanation:
Let's assume that Dave worked a total of 
hours.
Since Kate worked 5 hours less than Dave: 
And Sarah worked 10 more hours than Dave: 
Combined, the three siblings worked 185 hours.
Dave worked 60 hours,
Kate worked 55 hours and Sarah worked 70 hours.
To check:
55 + 60 + 70 = 185 hours
Answer:
x=2, perimeter=14
Step-by-step explanation:
Finding x
(x+1)(x+2)
x^2+2x+x+2=12
x^2+3x-10
x^2-2x+5x-10
x(x-2)5(x-2)
(x+5)(x-2)
x=-5
x=2
Length or Width should be a positve number.
x=2
Perimeter:
3+3+4+4=14
950/5=190
190*12=2280
2 billion and 280 million or 2.28 billion
