A spinner has an equal chance of landing on each of its four numbered regions. You
spin twice. What is the probability that the
first spin lands in region three and the
second spin lands in region one.

answers
0.630
0.250
0.059
0.060
0.264

hello, there is a new name in town and that's the human spider!

answer: d.) the total number of protons and neutrons is 15

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~

your friendly neighborhood human spider! .

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

the answer is "add 2y and y"

step-by-step explanation:

you need to collect the like terms first.