7.5 = x +
equals
x = 6.
First, subtract
from both sides. / Your problem should look like: 7.5 -
= x.
Second, simplify 7.5 -
to 6. / Your problem should look like: 6 = x.
Third, switch sides. / Your problem should look like x = 6, which is your answer.
I believe that is ten right?
The volume of the cube is 27x³ + 8y³ +54x²y + 36xy².
<h2>Volume of cube </h2>
The volume of a cube is the cube of its side.
<h2>Given to us</h2>
<h3>Algebraic Identity</h3>
<h3>The volume of the cube</h3>
Applying algebraic Identity,
![=(3x+2y)^3\\\\ =(3x)^3+(2y)^3+[3\times (3y)^2 \times2y]+[3 \times 3x \times(2y)^2]\\\\= 27x^3 + 8y^3 +54x^2y +36xy^2](https://tex.z-dn.net/?f=%3D%283x%2B2y%29%5E3%5C%5C%5C%5C%20%3D%283x%29%5E3%2B%282y%29%5E3%2B%5B3%5Ctimes%20%283y%29%5E2%20%5Ctimes2y%5D%2B%5B3%20%5Ctimes%203x%20%5Ctimes%282y%29%5E2%5D%5C%5C%5C%5C%3D%2027x%5E3%20%2B%208y%5E3%20%2B54x%5E2y%20%2B36xy%5E2)
Hence, the volume of the cube is 27x³ + 8y³ +54x²y + 36xy².
Learn more about Algebraic Identity:
brainly.com/question/662239
Answer:
About 4 hours.
Step-by-step explanation:
Let's set up a proportion and cross multiply.
Cross multiply.
120 = 28x
Divide by 28 on both sides.
= 4.28571428571
Round this to the nearest whole number, which is just 4. The answer is about 4 hours.
