Answer:
y = 5x + 3
Step-by-step explanation:
If you plot it on a graph it shows that the line y = 5x + 3 passes through those points.
Answer:
48
Step-by-step explanation:
let the number be x and x + 16 the result of adding 16 to it, then
the ratio of the result to the original is
= 
( cross- multiply )
4x = 3(x + 16) = 3x + 48 ( subtract 3x from both sides )
x = 48
Answer:
120
Step-by-step explanation:
No of math books = 4
No of History books = 7
Since no two math books are next to each other, we can say each math book is sandwiched between two history books like
H⇔M⇔H
We can assume that this there books in system above is binded together, thus we will have
3 binded combinations H⇔M⇔H
1 single Math book M
1 single History book H
No of possible arrangements = (3+1+1)! =5! = 5 x 4 x 3 x 2 x 1 = 120
