Question

Lock #5Dr. E. Quation says the Infant Mortality Rate of Korea shown by the expression; 7(m + 3) - 2. Is equal to his criminal success rate, shown by the expression: 8m + 17.2. What is the Infant Mortality Rate of Korea? *

Answer 1

The infant mortality rate in Korea based on equality provided is:

• 1.8

Explanation:

Since the text mentions that the infant mortality rate in Korea is equal to the criminal success rate, the two expressions must equalize and clear the variable m, which is the rate in each of the expressions:

• 7 (m + 3) - 2 = 8m + 17.2
• 7m + 21 - 2 = 8m + 17.2
• 7m + 19 = 8m + 17.2
• 19 - 17.2 = 8m - 7m
• 1.8 = m

As you can see, once the equality of the expressions is solved, a rate of 1.8 is obtained.