Answer:
Step-by-step explanation:
the same way you would do normal subtraction you just have to line your decimals and subtract normally, and any places that don't have a number could be filled with a 0
It's the second one, (-9, -13).
Tuesday. You look at the negative and the numbers.
Answer:
n = 24
Step-by-step explanation:
From the question,
The formula for the sum of the term in an AP is given as
Sₙ = n(a+L)/2.................. Equation 1
Where Sₙ = sum of the nth term, n = number of term, a = first term, L = last term.
make n the subject of the equation
n = 2Sₙ/(a+L)................. Equation 2
Given: Sₙ = 420, a = 4, L = 31
Substitute these values into equation 2
n = (2×420)/(4+31)
n = (840)/35
n = 24.
Hence, n = 24
Karen started painting the walls at = 9.25 am
she said that she would finish the job at = 2:35 pm
So, she predicted a total of = 5 hours 10 minutes or 310 minutes
Her mother said that three fourths of that time was enough to paint the walls= minutes
When Karen finished the job, they noticed that it actually took her 2/3 of an hour longer than the time predicted by the mother.
minutes so it is= minutes
So, Karen predicted minutes extra
To find it in hours= or in fractions it is of an hour