Answer:
Step-by-step explanation: l = 5 + w
p = 168
...
p = 2l + 2w
168 = 2(5+w) + 2w
168 = 10 + 2w + 2w
168 - 10 = 4w
158 = 4w
1 = 5 + 39.5
Answer:
The age of the oldest brother must be greater than 21 years
Step-by-step explanation:
Let
x, x+1 and x+2 -----> the ages of the brothers
we know that
The sum of their ages must be greater than 60
so
The inequality that represent this situation is
Solve for x
Combine like terms
Subtract 3 both sides
Divide by 3 both sides
so
if
therefore
The age of the oldest brother must be greater than 21 years
Answer:
7d=30
d=18.5714
Step-by-step explanation:
You need the total amount of how many animals
X is 6,y is 4
Step-by-step explanation:
Use the eliminations method,please look at the picture, Thanks