Unit cost calculations....find out which has the lowes cost per lb
A $ 4.98 / 2 lb = $ 2.49 / lb
Do the same for B C and D to see which has the smallest $ / lb
Their difference in spee is 16 - 12 = 4 mph
8 miles will take 8 / 4 = 2 hrs to catch up
Put -1 in the equation
-1 + 6 + 2b- 3c -12 = 0
2b-3c = 7
Put 1 in the equation
1 + 6 - 2b-3c -12 = 0
-2b-3c = 5 Now you can solve for a and b (hint: add the two red equations)
See if you can find 'a' Hint (x-a-1) divided into the equation should leave no remainder....
X-axis intercept occurs when y = 0
3x - 5(0) = 7
3x = 7
x = 7/3
two 5 x 3 faces
plus a 6 x 3 face
plus 12 x 3 face
plus top and bottom each: (12+6)/2 * 4 add all of that to get total in2
1/4 Of 1/2 the total are red boards
2/3 of 1/2 the total are red scooters
x = number of scooter + number of boards
1/4 * 1/2 x + 2/3 * 1/2 x =
1/8x + 2/6x
3/24 x + 8/24 x = 11/24 of the total scooters and boards are red
Volume = base area * height for a cylinder
198 = 22 * height
height = 198 / 22 cm
y = mx + b m = slope = 10
This was asked the other day.... from cphil: with a prime number in the denominator you will always have a nonterminating decimal
31/97 = 31/97 = 0.3195876288659794.......
If the graph starts at x = 0 she is correct
