The <u>correct answers</u> are:
#1) Open; there is a variable;
#2) Yes;
#3) No;
#4) (-10, -30); and
#5) (10, -86).
Explanation:
#1) An open sentence is one that contains a variable. This has a variable, p, on each side, so it is an open sentence.
#2) Solving the equation
2 - 8x = -6
Subtract 2 from each side:
2 - 8x - 2 = -6 - 2
-8x = -8
Divide both sides by -8:
-8x/-8 = -8/-8
x = 1
The answer is yes.
#3) For the equation y = 4x, to see if (3, 13) is a solution, substitute 3 for x:
y = 4(3)
y = 12
Since it is not 13, (3, 13) is not a solution.
#4) For the equation y = 3x, if we substitute -10 for x, we have:
y = 3(-10) = -30
The solution would be (-10, -30).
#5) For the equation y = -9x + 4, substitute 10 for x:
y = -9(10) + 4
y = -90 + 4
y = -86
The solution would be (10, -86).
Answer:
0.37 goldfish per cubic feet
Step-by-step explanation:
Density has the formula = number/volume
Density = 19/52 = 0.36538 which is rounded to 0.37
Answer:
Solve for x or y, Ax + By = 0
x=1 y=unknown number.
Step-by-step explanation:
Answer:
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