45 km at 54 km/hr 
45 / 54 = 5/6 
It took him 5/6 of an hour or 50 minutes I believe
61.4117 km per hr 
 
        
             
        
        
        
Complete Questions:
<em>Create an equation with a solution closest to 0 using digits 1 to 9
</em>
<em>_x + _ = _x + _</em>
<em></em>
Answer:
See Explanation
Step-by-step explanation:
Given
_x + _ = _x + _
Required
Fill in the gap using 1 to 9 to give a result close to 0
First, you have to determine what kind of numbers that are close to 0;
In this case, I'll work with -0.4 to 0.4 because the number in this range approximate to 0;
Next, is to fill in the gaps using trial by error method
5x + 2 = 2x + 3
Checking the above expression
<em>Collect Like Terms</em>
<em></em> <em></em>
<em></em>

Divide equation by 2
 <em>(Approximated)</em>
 <em>(Approximated)</em>
Another trial is
6x + 8 = 2x + 7
Checking the above expression
<em>Collect Like Terms</em>
<em></em> <em></em>
<em></em>

Divide equation by 4
 <em>(Approximated)</em>
 <em>(Approximated)</em>
<em>I'll stop here but note that, there are more expressions that can fill in the gaps</em>
 
        
             
        
        
        
The larger number is 6 and the smaller one is 2.
 
        
             
        
        
        
Answer:
Option A 90,68


Step-by-step explanation:
see the attached figure to better understand the problem
The figure shows a kite
we know that
A kite properties include
1) two pairs of consecutive, congruent sides
2) congruent non-vertex angles
3) perpendicular diagonals
Find the measure of angle 1
we have that
 ----> by the diagonals are perpendicular
 ----> by the diagonals are perpendicular
Find the measure of angle 2
we know that
triangle AEB is congruent with triangle CEB
so

In the right triangle EAB
 ----> by complementary angles in a right triangle
 ----> by complementary angles in a right triangle
so

therefore

 
        
             
        
        
        
Answer:
A rational number.
Step-by-step explanation
A rational number is a ratio of whole numbers.
1/3 is the ratio of 1:3 
3:1 becomes 3/1 = 3
32:10 can be written 32/10 or 16/5 or 3.2
16/5 is a rational number 16 and 5 are integers, 5 is not equal to 0.
Therefore, 3.2 which can be expressed as 16/5 is a rational number.