Explanation:
<em>What is an eighth of 32?
</em>
An eighth of 32 means 32 is divided into eight equal parts.
Let's use a fact family for this problem:
8 * ? = 32
32 / 8 = ?
-------------
8 * 4 = 32
32 / 8 = 4
An eighth of 32 is 4.
Five eights of 32:
Five eighths of 32 is five times four which is 20
20 is 5 eighths of 32
5/8 * 32 = 20
32 * 5 / 8 = 20
The answer is 32.
I think 20×5=100 then 100÷2
B. 18m(2n-3)
18m(2n-3)
= 18m(2n) - 3(18m)
= 36mn -54m
Answer:
I think d = 6 because 24 + 6 = 30
Since
3
x
2
a
,
3
x
a
2
contain both numbers and variables, there are two steps to find the GCF (HCF). Find GCF for the numeric part then find GCF for the variable part.
Steps to find the GCF for
3
x
2
a
,
3
x
a
2
:
1. Find the GCF for the numerical part
3
,
3
2. Find the GCF for the variable part
x
2
,
a
1
,
x
1
,
a
2
3. Multiply the values together
Find the common factors for the numerical part:
3
,
3
The factors for
3
are
1
,
3
.
Tap for more steps...
1
,
3
The factors for
3
are
1
,
3
.
Tap for more steps...
1
,
3
List all the factors for
3
,
3
to find the common factors.
3
:
1
,
3
3
:
1
,
3
The common factors for
3
,
3
are
1
,
3
.
1
,
3
The GCF for the numerical part is
3
.
GCF
Numerical
=
3
Next, find the common factors for the variable part:
x
2
,
a
,
x
,
a
2
The factors for
x
2
are
x
⋅
x
.
x
⋅
x
The factor for
a
1
is
a
itself.
a
The factor for
x
1
is
x
itself.
x
The factors for
a
2
are
a
⋅
a
.
a
⋅
a
List all the factors for
x
2
,
a
1
,
x
1
,
a
2
to find the common factors.
x
2
=
x
⋅
x
a
1
=
a
x
1
=
x
a
2
=
a
⋅
a
The common factors for the variables
x
2
,
a
1
,
x
1
,
a
2
are
x
⋅
a
.
x
⋅
a
The GCF for the variable part is
x
a
.
GCF
Variable
=
x
a
Multiply the GCF of the numerical part
3
and the GCF of the variable part
x
a
.
3
x
a