Answer:
2:25
Step-by-step explanation:
Time=distance/speed
81/36=2.25
2:25 is the time for how long this will take!
Answer:
1,030 quarts in two months
Step-by-step explanation:
First you would add the two months together like: 2,560 + 1,560 = 4,120
Then you would divide I think 4,120 by 4 which would look like: 4,120/4
You should get 1,030. I'm not sure if I did this right so rip ¯\_(ツ)_/¯
Here is one way to solve for x.
Step 1) 2x^2-7=9
Step 2) 2x^2-7+7=9+7
Step 3) 2x^2=16
Step 4) (2x^2)/2=16/2
Step 5) x^2=8
Step 6) sqrt(x^2)=sqrt(8)
Step 7) |x|=sqrt(8)
Step 8) x=sqrt(8) or x=-sqrt(8)
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Below are explanations/reasons to each of the steps above.
Step 1) Original equation
Step 2) Add 7 to both sides
Step 3) Combine like terms
Step 4) Divide both sides by 2
Step 5) Simplify
Step 6) Apply the square root to both sides. The notation "sqrt" is shorthand for "square root"
Step 7) Use the rule that sqrt(x^2) = |x| for all real numbers x
Step 8) Use the rule that if |x| = k then x = k or x = -k for some fixed number k.
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The two solutions are
x = sqrt(8) or x = -sqrt(8)
