Answer:
Step-by-step explanation:
Let x = Time taken <em>(in days)</em> by Jean to do the job.
Then, Time taken by Kate to do the job = x-5
Then, together they will take time (t) as
.
Since it is given that Kate and Jean paint a house together in 6 days.
i.e.
So, the equation represents the time it takes Kate to paint the house by herself is .
Answer:
36/60
Step-by-step explanation:
so to find the worth of the nine correct answers we use:
because for every 1 correct answer= 4 marks.
so right now we have 36 marks altogether
* you may not need this part but I'll show you just incase :)*
so since we have the 36 marks we can work out what the full score of the test is
so we goo back to the original number of 15 (the amount of questions) and times it by 4 because that would be the best score possible (100%)
so this is the maximum score
therefore Raj's score was 36 out of 60.
Hope this helps (^v^)
(a)
= 400
(b)
(c) Only the positive solution makes sense because you cannot have a negative side length.
(d) Since one side of the painting is 20 inches, all four sides together will be 20*4 = 80 inches
Answer:
a) (5×103)=5000
(9×107)=90000000
5000×90000000=450000000000
or 4.5×10 restipa 11
b)(7×105)=700000
(2×102)=200
70000÷200=3500
or 3.5×10 restipa 3