Question

Mixed Applications
Write an equation using the variable n. Then solve and check the solution.

42) If a number, n, divided by 8 equals 2.5, what is n?

43) The sum of a number, n, and 6.05 is 12.4. What is n?

44) Stacy is one-fourth as old as her mother. If Stacy's mother is
36, how old is Stacy?

45) One-third of a painting job takes 24 hours. How long will it take to finish the entire job?



Number Sense: Estimation
Use compatible numbers to estimate the solution.
46) 6b = 110
47) 4n = 159
48) 14/x = 5

Answer 1

The solution to the given question will be:-

A) If a number, n, divided by 8 equals 2.5, what is n: n = 20

B) The sum of a number, n, and 6.05 is 12.4. What is n: n = 6.35

C) Stacy is one-fourth as old as her mother. If Stacy's mother is

36, how old is Stacy: 9 years

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division

A) If a number, n, divided by 8 equals 2.5, what is n?

n / 8 = 2.5

n = 8 x 2.5 = 20

B) The sum of a number, n, and 6.05 is 12.4. What is n?

n  + 6.05 = 12.4

n = 12.4 - 6.05 = 6.35

C)  Stacy is one-fourth as old as her mother. If Stacy's mother is

36, how old is Stacy?

(1 / 4) M$_{age}$ = S$_{age}$

S$_{age}$  =  ( 36 / 4)

S$_{age}$  =  9 years

Therfore the answers are n = 20 ,n = 6.35, S$_{age}$  =  9 years

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