The algebraic expression for: the sum of a number and 5 decreased by twice the number is (n + 5) - 2n
<h3>Algebra</h3>
let
sum of a number and 5
= n + 5
decreased by twice the number
= -2(n)
= - 2n
sum of a number and 5 decreased by twice the number
= (n + 5) - 2n
= n + 5 - 2n
= 5 - n
Therefore, the algebraic expression which can be used to represent; the sum of a number and 5 decreased by twice the number is (n + 5) - 2n
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I the answer should be: 25, left in index form
n/4-20=-1
n/4=19 => Addition property of equality
n=4.75 or 4 3/4 => Division property of equality
Answer:
256 train or 80% of the trains arrived on time
Step-by-step explanation:
Total trains that arrived in a week = 320 trains
Late = 5% of 320
early = 15% of 320
On time = 320 - (15 + 5% of 320)
=> 320 - (20% * 320)
=> 320 - 64
=> 256
Therefore, 256 train or 80% of the trains arrived on time
Hope my answer helps :)
Answer:
Step-by-step explanation:
5 1/2%=0.024
3500 x 0.025 = 87.5
She paid 87.5$ dollars for the use of money
due date is after 6 months so
3500 times 6 = 21000
21000 times 0.025 = 525
She paid 525$ dollars on the due date
