Answer:
Commutative
Please, mark as brainliest
The Common Denominator is the bottom part of a fraction which has been matched to 2 or more fractions. For example 1/2 + 1/4 is easier if you use 2/4 + 1/4 = 3/4. You can also use it for 3/5 + 1 2/3 Becomes 3/5 + 5/3 (Improper fraction) and you change that to 9/15 + 25/15 = 34/15 = 2 4/15
We can use a system of equations to solve this.
Length 1 = x
Length 2 = y
Set up the system.
2x+2y=38
x+1=4y
Isolate the variable on one equation.
x=4y-1
Substitute that into the other equation.
2(4y-1)+2y=38
Solve.
8y-2+2y=38
10y=40
y=4
Substitute back into other equation.
x=4(4)-1=16-1=15
The lengths are 15 cm and 4 cm.
Hope this helps!
Answer:
2 1/32
Step-by-step explanation:
3 1/4×5/8
Change the mixed number to an improper fraction
3 1/4 = (4*3+1)/4 = 13/4
13/4 * 5/8
65/32
Changing back to a mixed number
32 goes in to 65 two times with 1 left over
2 1/32
8050 is the answer to "what does 805 tens="
