"Use Properties to find the sum or product" 6 x 107 "Complete the equation, and tell which property you used" 1. (3 x 10) x 8 = x (10 x 8) 2. 16 + 31 = 31 + 1. "The Metro Theater has 20 rows of seats with 18 seats in a row. Tickets cost $5. The theater's income in dollars if all seats are sold is (20 x 18) x 5. Use Properties to find the total income." 2. "The numbers of students in the four sixth-grade classes at Northside School are 26, 19, 34 and 21. Use properties to find the total number of students in the four classes" 1. "To find 19 + (11 + 31), Lennie added 19 and 11. Then he added 37 to the sum. What property did he use? Please help, I have school in a couple hours-

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

1/4 because there is 4 grades.

i can't solve unless i know what the line is

step-by-step explanation:

welcome to/p>

answer: ratio of volume of cone (with 3 times the height and equal diameter) to volume of cylinder is 2 to 1. the value of π is not used.

step-by-step explanation:

radius is diameter/2 = 4.

area of circle is π r^2.

volume of cylinder is height × area of base = hπr^2 = 3(4^2) π = 48π cubic inches.

not knowing the formula for volume of cone, i calculate it using calculus (which is for calculating things).

volume of cone is integral 0 to h area(y) dy. area(y) is π r(y)^2. r(y) runs r to zero as y runs zero to h, r(0) = r, r(h) = 0.

r(y) = r - r/h y

area(y) = π (r - r/h y)^2 = π (r^2 - 2r^2y/h + r^2y^2/h^2) = π r^2(1-2y/h+y^2/h^2)

antiderivative area(y) = π r^2 (y-y^2/h+y^3/(3h^2))

integral 0 to h = π r^2(h-h^2/h+h^3/(3h^2) - (0)) = π r^2(h - h + h/3) = π r^2(h/3) = π/3 r^2 h

volume of this cone is π/3(4^2)18 cubic inches.

= 6 16 π = 96π cubic inches.

cone has twice the volume, 96/48.

cone height is 6 times the cylinder.

ratio of volume formula: π r^2 cancels.

cone over cylinder ratio is 6h/3 to h, 2 to 1.