Alley bought 1 pound of potatoes costing $4 from a local grocery store last week. her final bill included an additional sales tax 8%. the next week alley found that the price for a pound of potatoes had gone up to $6. what is the percentage increase in the cost of a pound of potatoes, including the sales tax?

54%

Step-by-step explanation:

Given: The cost of 1 pound of  potato in  a local grocery store last week= $4

The cost of 1 pound of  potato in  a local grocery store last week after 8 % tax= $4+8% of $4

The cost of 1 pound of  potato in  a local grocery store next week= $6

The cost of 1 pound of  potato in  a local grocery store next week after 8 % tax= $6+8% of $6

The percentage increase in the cost of a pound of potatoes, including the sales tax will be given by :-

step-by-step explanation:

at each of the parallel lines adjacent angles are supplementary. the angles have special names identifying their positions with respect to the parallel lines and transversal. they are corresponding angles, alternate interior angles, or alternate exterior angles. an angles is congruent to its matched angle.

hello!

to begin with, we're given that on earth, a rock weighs 20 pounds, and while on jupiter, that same rock weighs 42 pounds. now, we're trying to find the weight of a rock that weighs 10.5 pounds on earth, on jupiter.

to solve this, first, set up a proportion, cross-multiply, and solve it algebraically.

setting up the proportion is the hardest and the most confusing part of the problem, but it's simple.

if on earth, the rock weighs 20 lbs, and on jupiter it weighs 42 lbs, our first part of our proportion is 20/42 lbs. the second part has to be equal to each other. this means that 10.5 has to be on the numerator of the fraction, and x, the value we're trying to find, has to be on the denominator. remember that the rock weighs 10.5 lbs on earth, and we're trying to find the weight of it on jupiter (which is x).

20/42 = 10.5/x

next, you would cross-multiply.

20x = 42(10.5)

20x = 441

now, solve it algebraically by using division.

x = 22.05 lbs

this can be rounded to 22.1 lbs.

therefore, the weight of the rock on jupiter is 22.1 lbs, the fourth choice.