Let a = the larger number
<span>b = the smaller number </span>
<span>a + b = 16 </span>
<span>3a - b = 72 </span>
<span>a = 16 - b </span>
<span>3(16 - b) - b = 72 </span>
<span>48 - 3b - b = 72 </span>
<span>-4b = 24 </span>
<span>b = -6 </span>
<span>a = 16 - (-6) </span>
<span>a = 22 </span>
<span>The two numbers are: </span>
<span>22 and -6</span>
Answer:
The answer should be a.) $5 per mile
hopefully my answer helps! ♡
(if my answers helped you please tell me, therefore I know.. that I did them correctly or incorrectly. anyways, have a great day/night!)
Step-by-step explanation:
it's a, because it mentions the rate of change, which is increasing... meaning it's a positive rate of change.
Answer:
Any number between 36-49
Step-by-step explanation:
The number has to be higher then 35. It has to be less then 50 because any number 50 or above would be more then/equal to 35
Answer:
- Kite
<em>I hope this helps you</em>
<em>:)</em>
Answer:
Year 10 Interactive Maths - Second Edition
Problem Solving
Linear equations are often used to solve practical problems that have an unknown quantity. We use a suitable pronumeral to represent the unknown quantity, translate the information given in the problem into an equation, and then solve the equation using the skills acquired earlier in this chapter.
Example 11
If a number is increased by 8, the result is 25. Find the number.
Solution:
Let x be the number. Increasing x by 8 gives x + 8, which we are told is 25. Therefore, x + 8 = 25. Subtract 8 from both sides to find x = 17. So, the number is 17.
Step-by-step explanation:
I hope this helps!!!
