Mathematics, 24.12.2020 08:30 samanthabutryn
Nadia is asked to find a number such that the difference between five times the number and three less than twice the number is equal to eighteen. Her work and answer are shown below. 5n−(3−2n)5n−3+2n7n−37nn181818213 Is Nadia correct? If not, identify and correct her error.
Answer from: kalebbenton15
Nadia is incorrect, please check explanations for the correction to her work
Step-by-step explanation:
Here, we want to validate the wok of Nadia
Let the number be n
5 times the number is 5 * n = 5n
Difference between 5n and 3 less than twice the number
3 less than twice the number is 2n-3
So it should be 2n-3 ;
The solution is thus;
5n - (2n-3) = 18
5n - 2n + 3 = 18
3n + 3 = 18
3n = 18-3
3n = 15
n = 15/3
n = 5
Answer from: Quest
56
step-by-step explanation:
Answer from: Quest
25 questions , because they start with 100.
350-100=250 .
. 250/10=25
step-by-step explanation:
first take off 100, then what x 10 = 250? that is your answer. (25)
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