Just add them together. For example if you have 4x and 7x you would just do 4x+7x and get 11x. You can only add them because they are like terms, meaning that they share a variable.
To answer this question you will use the Pythagorean Theorem. a^2+b^2=c^2. In this case a and b are the same because it is a square. So 2x^2=1600 (c^2 where c=40). Solve this equation ( divide both sides by two and find the square root for both). Each side length should be approximately 28.3 cm.
60 min = 1 hr
3/4 * 60 = mph (miles per hour)
3/4 * 60 = 45
The speed of the car in mph (miles per hour)
will be 45 mph
Answer = 45mph
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Answer:
42 cubic units
Step-by-step explanation:
7 x 3 x 2 = 21 x 2 = 42
Answer:
5
Step-by-step explanation:
If you want to do this with multiplication,
then 5% of 100 is 0.05 x 100 = 5
or you can think of 10% of 100 is 10, and then half it, it is 5