Answer:
1.2
Step-by-step explanation:
9/5*2/3=1.2
Remark
Average in this case does not mean you take (s1 + s2)/2. What average speed means is Total Distance / Total Time.
Formula
Average speed(s) = Total Distance / Total Time
Givens
Total Distance = 252 + 30 = 282 miles
Total Time = 5 hours.
Substitute and Solve
Average speed = 282 / 5
Average speed = 56.4 miles / hour <<<<< Answer.
The other facts are not used.
Divide both sides by f then cancel out
<em>An adult ticket costs $205 and a child ticket costs $49.</em>
<h2>
Explanation:</h2>
Hello! Recall you have to write complete questions in order to find exact answers. Here I'll assume the complete question as:
<em>Two families are planning a trip to Disney. The Smith family bought tickets for 2 adults and 3 children for $557. The Jones family bought tickets for 2 adults and 1 child </em><em>for $459</em><em>. How much does and adult and child ticket cost?</em>
To solve this problem, we need to write a system of linear equations in two variables. So, we know some facts:
- Two families are planning a trip to Disney.
- The Smith family bought tickets for 2 adults and 3 children for $557.
- The Jones family bought tickets for 2 adults and 1 child for $459.
Let:

For the Smith family:
Cost for the 2 adults:

Cost for the 3 children:

Total cost:

For the Jones family:
Cost for the 2 adults:

Cost for the 1 child:

Total cost:

So we have the following system of linear equations:

Subtracting (2) from (1):

Finally, <em>an adult ticket costs $205 and a child ticket costs $49.</em>
<em></em>
<h2>Learn more:</h2>
System of linear equations: brainly.com/question/13799715
#LearnWithBrainly
Answer: -4, -3, -2
Step-by-step explanation:
By inspection, we know
is a root.
We can thus rewrite the equation as
