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Simora [160]
3 years ago
13

Helpppppppppppppppppppppppppppppppppppppp

Mathematics
1 answer:
DedPeter [7]3 years ago
5 0

Answer:

For every 15 students scoring in the 60's there were 9 students scoring in the 70's.

Step-by-step explanation:

Your first step would be to rewrite the numbers into an easier to understand form like fractions, 45/3 and 27/3. Then you divide both numbers by 3, so you get comparable numbers. 45/3= 15, 27/3=9.

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What is equivalent to 3(y+4)+4(y-2)
amid [387]

Answer:

7y+4

Step-by-step explanation:

combine liked terms

7 0
3 years ago
Find the slope and y intercept of the line 6x+ 2y=-88
Vedmedyk [2.9K]
6x + 2y = -88
2y = -88 -6x
y=-88/2 -6/2x
y= -44 - 3x
y = -3x - 44

Y intercept = -44
Slope/m = -3 (aka) -3/1
7 0
3 years ago
What is the vertex of the parabola y=2x2+20x-15?<br><br> (5, 135)<br> (-5, -165)<br> (-5, -65)
maria [59]

Answer:

-296=2×2+20×-15that is the answer

Step-by-step explanation:

you need to calculate the equation step by step to get to the answer

5 0
3 years ago
The smaller the standard deviation, _______________________. Select one: a. the less variability it has b. the more variability
algol13

Answer:

a. the less variability it has

Step-by-step explanation:

The standard deviation is a measure of the amount of variation or dispersion of a set of values.

When your standard deviation is big your data is more dispersed.

When your standar deviation is small your mean is a representative index of your data, and there is less variability.

If there was no dispersion of the data (if all your data be the same) then the standard deviation will be 0.

5 0
3 years ago
What's the "Build Time" and "Paint/Assembly Time"
erik [133]

5x + 2y=50

or

5x + 2y<=50 (less than or equal to)

then

x + 2y=30

or

x + 2y<=30(less than or equal to)

5 0
3 years ago
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