You need the greatest common factor of the two numbers.
First, we find the prime factorization of each number.
72/2 = 36
36/2 = 18
18/2 = 9
9/3 = 3
3/3 = 1
72 = 2^3 * 3^2
90/2 = 45
45/3 = 15
15/3 = 5
5/5 = 1
90 = 2 * 3^2 * 5
To find the GCF, use only common factors with the lower exponent.
Both 72 and 90 have 2 as a factor. 72 has 2^3, and 90 has 2. 2 has a lower exponent than 2^3, so we use 2.
Both 72 and 90 have 3 as a factor. The both have 3^2, so we use 3^2.
90 has 5 as a factor, but 72 does not, so 5 is not a common factor, so we do not use 5.
The GCF is the product of the factor we use.
GCF = 2 * 3^2 = 2 * 9 = 18
Answer: The greatest number of students he can place in a row is 18.
When you determine the place value of a number, you usually start from right to left. The order is as follows:
units (a number followed by no zeroes), tens (a number followed by 1 zero), hundreds (a number followed by 2 zero), thousands (a number followed by 3 zero), ten thousands (a number followed by 4 zero) and finally a hundred thousands (a number followed by 5 zero).
Based on this:
<span>770, 070 in expanded form is:
</span>(7x100000) + (7x10000) + (0x1000) + (0x100) + (7x10) + (0)
Hope this helps u out :D
Answer:
The GCF is 3w
Step-by-step explanation:
You have to find the GCF of
6w^3, 3w^2, 9w
You can start with 3. Then get:
6w^3/3 = 2w^3
3w^2/3 = w^2
9w/3 = 3w
The following factor is w. It has to have an exponent of one, as it the smallest exponent present in the 3 numbers:
2w^3/w = 2w
w^2/w = w
3w/w = 3
Expression:
6w^3 - 3w^2 - 9w= 3w(2w^2 - w - 3)
The GCF is 3w.
Ella and Matt each have 10x as many pennies as Wilfren. (there is a ratio of 1:10 between wilfren and ella, and wilfren and matt)
Answer:
0.8 or 4/5 foot long each
Step-by-step explanation:
3 1/5 as a decimal is 3.2
3.2÷4=0.8
or 4/5