You can determine if a number is rational if it can be represented as a terminating or repeated decimal, but if it can not, then the number is irrational.
You have a bucket 1 gallon big.
To mix cleaner and water you need to divide the bucket's capacity into 4.
It's easy in this case as gallon is divided into quarts (1 gallon is equal to 4 quarts).
<span>Since one part will be a window cleaner, it means that you will need to use </span>1 quart <span>of the cleaner. </span>
Answer:
Step-by-step explanation:
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Yes! 2+2=4, and 2*2=4.
Both are equivalent but have different mathematical operations.
Answer:
(7, -4.5)
Step-by-step explanation:
25−x=−4y ---> x=25+4y
3x−2y=30
use x to substitute into the second equation
3 (25+4y)-2y = 30
75+12y-2y=30
75+10y=30
10y=-45
y=-4.5
3x-2(-4.5)=30
3x+9=30
3x=21
x=7
check:
25-7=-4*-4.5
18=18 (yes)
3*7-2*-4.5=30
21+9=30
30=30 (yes)
