For the answer to the question above, <span>f x is the number of days she works, she'll earn $90x </span>
<span>After buying the laptop, she'll have $90x - $700 left over, which will pay for ($90x - $700) / $150 days of travel. So we have y = ($90x - $700) / $150 = (9x - 70) / 15 = 0.6x - (14/3) </span>
<span>Note that y can't be negative. Also, if y = 0, then Emma doesn't get to travel at all, so we should avoid that. So we have: </span>
<span>0.6x - (14/3) > 0 </span>
<span>0.6x > 14/3 </span>
<span>x > (14/3) / 0.6 </span>
<span>x > 70/9 </span>
<span>The question says that x can be up to 40, so the domain is 70/9 < x <= 40 </span>
<span>That's approximately 7.777... < x <= 40 </span>
<span>Multiply those numbers by 0.6 and then subtract 700 to get the range: </span>
<span>0 < y <= 58/3 </span>
<span>That's approximately 0 < y <= 19.333</span>
The average speed of the horse is 25.0m/s
<h3>What is speed?</h3>
Speed is the rate of change of distance over time
The given parameters are:
- Distance (d) = 800 meters
- Time (t) = 32.0 seconds
The average speed of the horse is then calculated as:
This gives
Evaluate the quotient
Hence, the average speed of the horse is 25.0m/s
Read more about speed at:
brainly.com/question/4931057
Answer:
Step-by-step explanation:
Let the number be xx
Therefore the product of two and the number is 2xx
If there is eight more than that number, we can say that
2xx + 8
If it is assumed that the equation is equal to zero
2xx + 8 = 0
2xx = -8
xx = -8/2
xx = -4
D.Php 36x because 1 dozen is = 12 pieces so if there’s 3 dozen of apple it would be 12 x 3 the answer which is 36
In mathematics, whole numbers are the basic counting numbers 0, 1, 2, 3, 4, 5, 6, … and so on. 17, 99, 267, 8107 and 999999999 are examples of whole numbers. Whole numbers include natural numbers that begin from 1 onwards. Whole numbers include positive integers along with 0.
