Hello, each and every one of your 20 trials should be very similar to the one prior, as long as you keep the data the same, such as how much water you use, or the length of an object, etc.
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Answer:
son is 12
dad is 36
Step-by-step explanation:
Say the son is x years old.
Then the father is 3x. Also 3x+x must be 48.
So 4x = 48 => x= 48/4 = 12
Answer:
That's a very dumb question, because some of her friends could be fakers and users. But, I'll answer it.
86 subtracted by 2 is 84.
It says she gave 3 to each friend so:
84 divided by 3 is 28.
She has 28 friends.
Answer:
D
Step-by-step explanation:
We have the expression:

First, let's distribute the negative on the right. This gives us:

Now, let's combine like terms:

Add:

Subtract:

Simplify:

So, our answer is D.
And we're done!
He made an error is step 2
3x + 18 = 2x +8
subtract 2x from each side
x + 18 = 8