Expand Previous Next Check 0/1 ptRetries 5Reattempts 9 2 4 6 8 10 data 1 6 11 16 21 26 31 Frequency [Graphs generated by this script: setBorder(54,40,20,5); initPicture(0,31,0,10);axes(1000,2, 1,1000,2); fill="blue"; textabs([165,0],"data","above");lin e([1,-0.2],[1,0.2]); text([1,0],"1","below");line([6,-0. 2],[6,0.2]); text([6,0],"6","below");line([11,-0 .2],[11,0.2]); text([11,0],"11","below");line([16, -0.2],[16,0.2]); text([16,0],"16","below");line([21, -0.2],[21,0.2]); text([21,0],"21","below");line([26, -0.2],[26,0.2]); text([26,0],"26","below");line([31, -0.2],[31,0.2]); text([31,0],"31","below");textabs([ 0,115],"Frequency","right",90);rect ([1,0],[6,2]);rect([6,0],[11,10]);r ect([11,0],[16,9]);rect([16,0],[21, 6]);rect([21,0],[26,8]);rect([26,0] ,[31,4]);] Based on the histogram above, what is the class width? Class width = What is the sample size? Sample size =

16.9 times 2.85

step-by-step explanation:

im here

step-by-step explanation:

simplifying

5(x + -6) = 2(x + 3)

reorder the terms:

5(-6 + x) = 2(x + 3)

(-6 * 5 + x * 5) = 2(x + 3)

(-30 + 5x) = 2(x + 3)

reorder the terms:

-30 + 5x = 2(3 + x)

-30 + 5x = (3 * 2 + x * 2)

-30 + 5x = (6 + 2x)

solving

-30 + 5x = 6 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-30 + 5x + -2x = 6 + 2x + -2x

combine like terms: 5x + -2x = 3x

-30 + 3x = 6 + 2x + -2x

combine like terms: 2x + -2x = 0

-30 + 3x = 6 + 0

-30 + 3x = 6

add '30' to each side of the equation.

-30 + 30 + 3x = 6 + 30

combine like terms: -30 + 30 = 0

0 + 3x = 6 + 30

3x = 6 + 30

combine like terms: 6 + 30 = 36

3x = 36

divide each side by '3'.

x = 12

simplifying

x = 12

this should .

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15