A store sells packages of batteries. The package with the best deal has the highest ratio of number of batteries to total cost. Packages of Batteries Number of Batteries Total

Complete question:

A store sells packages of batteries. The package with the best deal has the highest ratio of number of batteries to total cost.

Packages of Batteries

Number of Batteries

Total Cost

3

$8

5

$8

12

$24

14

$24

Which package offers the best deal?

3 for $8

5 for $8

12 for $24

14 for $24

5 for $8

Step-by-step explanation:

Given:

3 batteries sell for $8

5 batteries sell for $8

12 batteries sell for $24

14 batteries sell for $24

To find the package that offers the best deal, find the cost of each battery by dividing each total cost by the number of the batteries. The package with the lowest will be the best package.

Thus:

Package 1:

Package 2:

Package 3:

Package 1:

The best package here is package 2 where 5 batteries sell for $8, because the cost of each battery here is significantly lower than the cost of each battery in other packages.

y=−9/2x+10

step-by-step explanation:

let's solve for y.

0−9x−2y=−20

step 1: add 9x to both sides.

−9x−2y+9x=−20+9x

−2y=9x−20

step 2: divide both sides by -2.

−2y

−2

=

9x−20

−2

y=

−9

2

x+10

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

~