Hi!
So it starts with 1.50.
1.50 +
0.50 for each mile
1.50 + 0.50x
She has $25 to spend, so the amount has to be less than or equal to $25.
1.50 + 0.50x ≤ 25
^the answer
Hope this helps! :)
The speed while walking is 0.2 kilometers per minute
Step-by-step explanation:
The speed is calculated as distance per unit time.
Given
Distance = d = 5 km
Time by walking = t = 25 minutes
The speed is given by:

Putting the values

The speed while walking is 0.2 kilometers per minute
Keywords: Speed, distance
Learn more about speed at:
#LearnwithBrainly
We can always do a prime factoring of it, and check
50 = 2*5*5
2*5²
a perfect square, so-called, is the resulting number of a squared value, well 50 is not the result of anything squared, is the result of 3 factors, in this case 2,5 and 5.
a perfect square will be something like say 64, or 144, because
64 = 8*8
8²
144 = 12*12
12²
Answer:
40,000 workers
Step-by-step explanation:
This question deals with simple rates proportion.
If it takes 20 years for X workers to complete a job,
if we double the amount of workers, we will take half the time.
hence to halve the time from 20 years to 10 years, we will need to double the amount of workers.
In this case we will need 20,000 workers x 2 = 40,000 workers
<h2>
The required "option A) 20" is correct.</h2>
Step-by-step explanation:
Let x be the smaller than 4 ×
.
To find, the number of times smaller is 2 ×
than 4 ×
= ?
∴ x = 
= 2 ×
× 
Using the identity,

= 2 × 
Using the identity,

= 2 × 
= 2 × 10
= 20
Thus, the required "option A) 20" is correct.