Answer:
A and D are the true number sentences
<u>Answer:</u>
Ayden solved 18 maths problems and read 36 pages
<u>Explanation:</u>
Let x represent the number of maths problems Ayden solved
y represent the number of pages he read
According to the question,
3x + 1y = 90
y = 2x as no. of pages he read is twice the number of math problems
Substituting,
3x + 2x = 90
Solving for x, x = 18
So, Ayden solved 18 maths problems
Putting the value in equation y = 2x,
y = 36
So, Ayden read 36 pages
A function assigns the values. The profit-maximizing quantity of labour to hire is 15 workers.
<h3>What is a Function?</h3>
A function assigns the value of each element of one set to the other specific element of another set.
Given the marginal revenue product, MRP = 40-(Q/10)
The cost of labour, WL = 10
The production function, Q = 20 L
For profit maximizing quantity of labour to hire where,
MRP = WL
40-(Q/10) = 10
40-(20L/10)=10
40-2L=10
-2L = 10-40
-2L=-30
L=15
Hence, the profit-maximizing quantity of labour to hire is 15 workers.
Learn more about Function:
brainly.com/question/5245372
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