N+7 - 7 more songs added
n-2 - 2 songs deleted (subtracted)
4n - 4 times more songs than before
n/2 - the number of songs cut in half (divided by 2)
I hope this helps you
10B=6-12C
B=2 (3-6C)/10
B =3-6C/5
Well you estimate the equation. 7 x 3289 to 7 x 3000 and you do 7 x 3 but add 3 zeros in the end so you get 21000
Answer:
297 and 298
Step-by-step explanation:
We are given a number 1189.
We have to divide this number by 4 and find the quotient that is the two estimates between which the quotient lies.
By rule for divisibility of 4, we have last two digits 8 and 9 , i.e.89 is not divisible by 4.
Hence 1189 is not divisible by 4.
But the greatest below number divisible by 4 is 1188 and
the least above number divisible by 4 is 1192
i.e. the quotients will lie between 1188/4 and 1192/4
i.e. lie between 297 and 298.
