By distributing the 2 on (x+2), we will end up with 2x +4 -3. after that, we can just simplify the expression by adding and subtracting.
Answer:
30
Step-by-step explanation:
We need to find the greatest common factor of 120 and 144.
First, write the prime factorization of both:
120 = 2³×3×5
144 = 2⁴×3²
Both have 2³ and 3 in common, so the GCF is:
GCF = 2³×3
GCF = 24
So the side length is 24 cm. The number of squares along the width is:
120 / 24 = 5
And the number of squares along the length:
144 / 24 = 6
So the number of squares need to fill the entire area is 5×6 = 30. This is the least number of squares with whole-number side lengths that he can use.
5=5
17=(5•3)+2
53=(17•3)+2
161=(53•3)+2
485=(161•3)+2
1,457=(485•3)+2
If I did it right, it is 120
30 miles per hour..........