Step-by-step explanation:
1 flight of stairs = 13 steps
9 flight of stairs = 117 steps
5days = 117 x 5 = 585 steps
The answer would be C
2x + 9 = 21
1. 2x = 12
2. x = 6
Answer:
Step-by-step explanation:
≤
With this, we can construct two inequalities:
≤
≥
Solving for each one will give us the answer:
≤
≤
≤
≥
≥
≥
This give us the following range:
≤ ≤
Answer:
3
Step-by-step explanation:
The exponent is 3 because of the ^
Answer:
Therefore other two sides of the triangle are 4 and 5.
Step-by-step explanation:
Given one leg of a right triangle has a length of 3
Let other sides of the triangle be x and x+1 [ since they are consecutive]
According to the problem,
3²+x²=(x+1)²
⇔9 + x²=x²+2x+1
⇔2x+1=9
⇔2x=9-1
⇔2x=8
⇔x=4
Therefore other two sides of the triangle are 4 and 5.