4t represents the rate of growth of the population of bacteria given the number of days.
<h3>What does the equation mean?</h3>
Given this equation, b = 250 x 4t, 250 is the initial population of the bacteria. 4t indicates that the bacteria increases by 4 with the passage of a day.
For example, after 1 day, the population becomes : 250 x (4 x 1) = 254
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Number of days Adya took to complete the work = 20
Work done by Adya in 1 day = 
Number of days Ashley took to complete the work = 25
Work done by Ashley in 1 day = 
So,
Total work by Adya & Ashley in 1 day =
•°• Their total work in 10 days =
Now,
The work left to be completed =
From this we know that,
Amber completes 
of the work in 3 days.
So,
Time taken by Amber to complete the whole work =
↦ If Amber alone would do the whole work, he would take 
to complete it.
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Step-by-step explanation:
) Every positive rational number is greater than 0.
(ii) Every negative rational number is less than 0.
(iii) Every positive rational number is greater than every negative rational number.
(iv) Every rational number represented by a point on the number line is greater than every rational number represented by points on its left.
(v) Every rational number represented by a point on the number line is less than every rational number represented by paints on its right
b
Answer:
x = 11 * sqrt(3)
y = 11
Step-by-step explanation:
Use the ratio of the lengths of the sides of a 30-60-90 triangle.
y = 22/2 = 11
x = 11 * sqrt(3)
Ik the first equation you just distribute three to north numbers and it’ll give you 9x+15 and in the second one you can distribute a negative 1 and it’ll give you 9x+15
