The product of two numbers is 21. if the first number is -3, which equation represents this situation and what is the second number? a. the equation that represents this situation is x − 3 = 21. the second number is 24. b. the equation that represents this situation is 3x = 21. the second number is 7. c. the equation that represents this situation is -3x = 21. the second number is -7. d. the equation that represents this situation is -3 + x = 21. the second number is 18.

Option C

The equation that represents this situation is -3x = 21

The second number is -7

Solution:

The first number is -3

The product of two numbers is 21

Let the second number be "x"

The equation that represents this situation is:

Product of first and second number = 21

Thus the equation is found

Solve the equation

-3x = 21

Divide both sides by -3

Thus the second number is -7

56

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950