Answer:
(x - 4)³
Step-by-step explanation:
"The cube of x" would be x³. The difference of a number and 4 would be x - 4.
Therefore, "the cube of the difference of a number and 4" would be
(x - 4)³
Hey there!
First, let's multiply each side of the equation by 3 to get rid of the fraction
.
9 + 2x = 
Next we can multiply each side of the equation by 5 to get rid of the fraction
.
45 + 10x = 6
There's your answer!
Hope this helps!
Answer: 
Step-by-step explanation:
First, we need to find the common denominator
The easiest way to do this is by multiplying the two given denominators, which are 2 and 5.
2 × 5 = 10
So, our common denominator is 10. Then, multiply the numerators of the two fractions by 2 and 5. Here's why:
=
We multiplied the top and bottom by 2 to make sure our new fraction stays equivalent to the original fraction.
Do the same thing for the other one:
= 
Finally, subtract the two fractions to find the difference between the two times:
= 
The reason we used the common denominator is because we can only add or subtract fractions if they have the same denominator.
Answer:
1 1/2 cups
Work: 2/3 of 4 1/2= 3
4 1/2-3= 1 1/2