Hey!
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-x = -1
This statement shows that y equals -1. Since it doesn't show a table or word problem then we already know that the constant of proportionality is -1. Or if you just have the expression just divide the number by 1. -x/1 = -1!
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Thus, -1 is the constant of proportionality!
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Hope This Helped! Good Luck!
X/4 + x/5 = 1
5x/20 + 4x/20=1
9x/20 =1
9x = 20
x = 2.22 hours
10 and -7 times each other equals -70.
10 plus -7 equals 3.
Hope this helps you! (:
Answer:
3/14 of an hour
Step-by-step explanation:
9 hours/42 dollars
Step 1: Subtract 28x from both sides.
4x2−28x=28x−28x4x2−28x=0
Step 2: Factor left side of equation.
4x(x−7)=0
Step 3: Set factors equal to 0.
4x=0 or x−7=0
Answer:x=0 or x=7
