Ax=15+bx
ax-bx=15
x(a-b)=15
x=15/(a-b)
The most important thing in this problem is understanding and then dividing the given units properly. The first thing that is given is that the CD makes 58 1/2 revolutions in 3/4 minutes. We have to first simplify the number of revolutions made by the CD. This will make the problem in hand very easy.
Number of revolutions made by the CD = 58 1/2
= 117/2
Then
The unit rate = (117/2)/(3/4)
= (117 * 4)/(2 * 3)
= (117 * 2)/3
= 39 * 2
78
So the unit rate is 78 revolutions per minute.
{(0, 4), (2, 4), (3, 7), (4, 9)} is a function.
After value putting, if the number of guests represented by the variable (g) is 17 then the cost pf the food is $220.
In the given question we have to evaluate the expression if the number of guests represented by the variable (g) is 17.
An expression to represent the cost of the food for a catered lunch is 50+10g.
The fee for the catering is $50 and then there is a $10 charge for each lunch box.
Since g is representing the number of guests.
The the value of g is given 17.
Now putting the value of g in the given expression.
=50+10g
=50+10*17
=50+170
=220
Hence, if the number of guests represented by the variable (g) is 17 then the cost pf the food is $220.
To learn more about value putting link is here
brainly.com/question/4824769
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