Answer:
5
Step-by-step explanation:
Line up the binomials (or any polynomials) as you would for multiplying large numerical values. Following the pattern of number multiplication, start with the right-hand term of the bottom binomial (+4). Multiply this value times both terms of the top binomial. Now move to the left-hand term of the bottom binomial (x).
X + y + z = 27
x = 2z
y = 3 + z
2z + 3 + z + z = 27 ; 4z = 24; z = 6 youngest
x = 12 oldest
y = 9 middle one
Answer:
210 miles on the first day so 1/5 longer than the 2nd day
Step-by-step explanation:
Answer:
Step-by-step explanation:
The square of 2, -2 is 4. square of 3, -3 is 9. so square root of 7 has to be less than 3 but more than 2. therefore the integers are either 2 and 3 or -3 and -2.