The equation in terms of x, for the total time he takes in hours would be 2.48 = 12/x + 26/10x
<h3>What is speed?</h3>
Speed can be calculated as the ratio of distance traveled to the time taken
Darpan runs a distance of 12 km and then cycles a distance of 26 km.
Total distance = 12 + 26 = 38km
The running speed is x km/h
A = x
The cycling speed is 10 km/h faster than his running speed
B = 10x
He takes a total time of 2 hours and 48 minutes.
So, the total time he takes
Time = Distance x speed
2.48 = 12/x + 26/10x
10x(2.48) = 120 + 26
24.8x = 146
x = 5.8
Learn more about speed here;
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Log (x) = 3
10^3 = x
x = 1,000
<span>3|x − 8| =18 - 15 = 3
</span>|x − 8| = 3/3 = 1
x − 8 =

x =

+ 8
x = 1 + 8 or x = -1 + 8
x = 9 or x = 7
i.e. minimum temperature is 7 while the maximum temperature is 9
Answer:
a) The average salary of firefighters in Portugal is $583.
b) The standard deviation of the salary of firefighters in Portugal is $319.8
Step-by-step explanation:
We are given the following in the question:
a) Standard Deviation, σ = $145.80
We are given that the distribution of salary of professor is a bell shaped distribution that is a normal distribution.
Formula:

A salary of $510.10 has a z-score of -0.50.
Putting values, we get,

Thus, the average salary of firefighters in Portugal is $583.
b) Mean, μ = $2,132
We are given that the distribution of salary of computer programmers is a bell shaped distribution that is a normal distribution.
Formula:

The salary of $2,291.90 has a z-score of +0.50
Putting values, we get,

Thus, the standard deviation of the salary of firefighters in Portugal is $319.8
You can set up 2 equations for the two companies that sell pizza. Pizza A's will be:

And B's will be:

To find the number of toppings we will need to make the companies prices equal can be found by setting the equations equal to each other and solving for x, because x is the price per topping. So:




So, the
number of toppings you will need is 5 toppings to make their prices equal. *If any step is unclear, then hmu!