Let the length is x and the width is y
x - y = 4 .........(1) 2x + 2y = 12
x + y = 6........(2)
by adding 1 and 2
2x =10 , x = 5
y = 1 inch
Answer:
answer is down below
Step-by-step explanation:
2x^2 + 5x + 2 =0
multiply 2x^2 x 2 = 4x^2
find two numbers that multiply together to get 4 and add together to make 5
so 4 and 1.
Put them in back in the equation: 2x^2 + x + 4x + 2
split it up in the middle and factorise
so 2x^2 + x becomes x(2x+1)
and 4x+2 becomes 2(2x+1)
<u>so (x+2)(2x+1) is the answer</u>
27x2+12x
By the way the 2 is meant to be 27x squared but I don't know how to get the symbol
Answer:
60 copies
Step-by-step explanation:
first you take 1/6th of the original 90 copies which is 15 and subtract that from the 90, you are left with 75 copies which is how many they had left at the end of yesterday. then you take 1/5th of the 75 copies that are left which is also 15 and you subtract that from 75 and you get 60. that's why at the end of today there are 60 copies left.
Answer: 
<u>Step-by-step explanation:</u>
