An electronics store makes a profit of $72 for every television sold and $90 for every computer sold. the manager’s target is to make at least $360 a day on sales from televisions and computers. write a linear inequality and graph the solutions. what are three possible solutions to the problem?
a. (5, 2), (3, 3), and (1, 4) are three possible solutions.
b. (4, 0), (2, 2), and (1, 1) are three possible solutions.
c. (3, 1), (2, 2), and (1, 0) are three possible solutions.
d. (4, 0), (3, 3), and (1, 4) are three possible solutions.

The answer is A.

Solution:

·         (5, 2)

5*72 = 360

2*90 = 180

360 + 180 = 540

·         (3, 3)

3*72 = 216

3*90 = 270

216 + 270 = 486

·         (1, 4)

1*72 = 72

4*90 = 360

72 + 360 = 432

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

click to let others know, how is it

0.0

0 votes

1

report

read more on -

step-by-step explanation: