When you use a tens fact you round to the nearest ten and 15-8=7. The nearest ten to seven is 10
Answer:10
Answer:
Mean = 24
Variance = 107.78
Standard deviation = 10.38
Hope this helps! :)
Answer:
This system has infinite solutions and it would be much easier to solve it by elimination but substitution it is.
Step-by-step explanation:
-3x+3y=9
-x+y=3
Isolate either x or y in any of the equations. I'll go with the second.
y = 3+x
Now substitute this for y in the first equation.
-3x+3(3+x)=9
Distribute the 3
-3x+9+3x=9
Combine like terms:
9=9
0=0
It's infinite
Step-by-step explanation:
This actually depends in different problem but the way I think your talking about is the easiest way.
Problem: 80% of 385
Step 1 You will be Multiplying
Step 2. Move the decimal to the left by 2 places.
Example: 385
x .80
----------
Step 3 do the problem
example: 385
x.80
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308.0% is the percentage
make sure to drop the decimal but if there there nothing after it don't leave it in your final answers ( some teachers mark it wrong when it really it's not wrong just improper format)
Answer:
6 cans.
Step-by-step explanation:
total of 114 square foot of surface area
