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BartSMP [9]
3 years ago
13

Jackie's rain gauge showed 12 2/5 centimeters on April 15 and 15 2/10 centimeters on April 30. How many centimeters of rain fell

in April?
A) 27 cm
B) 27 3/5 cm
C) 27 4/5 cm
D) 28 cm
Mathematics
1 answer:
shepuryov [24]3 years ago
3 0
Your answer will be B) 27 3/5
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Which values of m and b will create a system of equations with no solution? choose 1 options.
hichkok12 [17]

Answer:

The graph of a linear equation is a straight line.  The "solution" to a system of two linear equations is the point where the two lines cross.  If the two lines are parallel, they never cross; hence parallel lines have no solution.  Two lines are parallel if they have the same slope (the m value in y = mx+b).  One of your equations is y = -2x + (you left the y-intercept out).  The slope is -2.  So any line with a slope of m = -2 will be parallel to this line and will not cross it.  The second line also needs a different value of b, the y-intercept.  Otherwise it is the same line and every point is a solution.  So if your equation is:

 

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Then any equation of the form y = -2x + b, b≠1 will create a system with no solution.  Hence the values of m and b are m = -2, b ≠ 1.

5 0
2 years ago
Lucia is not yet 80 years old. each of her sons has as many sons as brothers. the combined number of lucias sons and grandsons e
Ne4ueva [31]
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7 0
3 years ago
What is the value of X in 1.2÷0.3= X÷0.4
sashaice [31]

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8 0
3 years ago
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How many lines of symmetry does a regular decagon have?<br><br> 8<br><br> 10<br><br> 11<br><br> 12
bixtya [17]
The number of sides is the same as the number of lines of symmetry and the order of rotational symmetry.

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6 0
3 years ago
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Step-by-step explanation:

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7040/8000

704/800

3 0
3 years ago
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