lilie080202
19.12.2019 •
Mathematics
Frederick buys a can of three tennis balls. the empty can weighs 20 grams, and each tennis ball weighs 60 grams. what is the total weight of the can with 3 tennis balls
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Ответ:
Step-by-step explanation:
First we have to factor the equation:
The commom factor of first three terms and is . Note that
In order to have two equal factors add 35 both sides:
Let's factor
Now we have:
Now it is the interesting part: You have to figure out that 3 numbers multiplied by each other will result in 847.
We have
Let's try
I will stop right here. This is not true.
Let's try then
Now let's try
Now let's try
Note that in this case I didn't considered because it would not be an integer.
Therefore,