Answer
25 percent
Step-by-step explanation:
Answer:
5-1 1/4=4+5-1
3 3/4=8
false
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Let the two sides of the rectangle be x and y.
Then the perimeter will be:
Since the perimeter is 54:
We know that one side of the rectangle is 3 inches <em>shorter</em> than the other.
Let y be the shorter side. It is 3 <em>less </em>than x.
Therefore:
Then by substitution, we acquire:
The answer is A.
Travel time when Carlos traveled at 52 miles/hr = t1
Travel distance when Carlos traveled at 52 <span>miles/hr = 52 t1
</span>
Travel time when Maria traveled at 54 <span>miles/hr = t2
</span>Travel distance when Maria traveled at 54 miles/hr = 54 t2
total time
t1 + t2 = 4.1
total distance
52 t1 + 54 t2 = 217
<span>( t1 + t2 = 4.1 ) * 52
</span>52 t1 + 52 t2 = 213.2
Subtract last 2 equations
2 t2 = (217-213.2)
2 t2 = 3.8
t2 = 1.9
t1 = 2.2
Hours Maria driven = 2.2 hours
Exterior angles of triangles = 360°.
So by definition:
The value of x is <em>12.</em>