Icould really use some with consumer math a! anyone?

2. when calculating total savings, you must (1 point)
calculate the total cost of the item when not on sale and subtract the sales cost
calculate the total cost of the items at their sale price
add all of the items together and divide by the total number of items
calculate the total cost of the items at their sale price and subtract the original cost

3. you go to the grocery store and find that bread is $4.99/loaf or 2 loaves for $6.50. how much would you save by buying 2 loaves? (1 point)
$4.99
$2.51
$3.48
$1.49

4. you buy 2 gallons of milk at $2.48/gallon, 3 gallons of ice cream at $1.49/gallon, and 5 lbs of strawberries at $0.58/lb. what is your total cost? (1 point)
$12.33
$4.55
$10.01
$7.53

Answer

2) calculate the total cost of the items at their sale price and subtract the original cost

3) $3.48

4) $12.33

Explanation

Q2

Saving is the money left when you subtract all the expenses incurred when buying the product. In the question 2 above, the answer that best fits explains saving is, "calculate the total cost of the items at their sale price and subtract the original cost".

Q3

When buying one bread twice = 2 × $4.99 = $9.98

When two breads at once = $6.50

Saving = $9.98 - $6.50

= $3.48

Q4

Total cost = (2×2.48) + (3×1.49) + (5×0.58)

= 4.96 + 4.47 +2.90

= $12.33

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.