a) 20(x)=y
b) $120
Let x= number of hours
Let y= Cost of labor
20 will remain constant, what matters is how many hours are being worked. If it's $20 per hour then it's safe to assume 1 hour is 20 dollars worth of labor. Due to it being per hour you have to multiply the rate by however many hours worked to get your final cost.
A mapping diagram shows relationships
Answer:
90 packets
Step-by-step explanation:
Subtract the weight of the box.
33-1.5=31.5
There are 31.5kg of packets.
Convert it to g.
31500g
Divide it by the weight of one packet.
31500/350=90
The box holds 90 packets.
Answer:
g( f(x) ) = 2x^2 + 11 (Answer choice B)
Step-by-step explanation:
g( f(x) ) involves using the function f(x) = x^2 + 6 as the input to g(x).
Here, g(x) = 2x - 1. Replace the x in g(x) by "f(x)" and the x in 2x - 1 by x^2 + 6. Then we have g( f(x) ) = 2[x^2 + 6] -1. This can be simplified, as follows:
= 2x^2 + 12 - 1, or 2x^2 + 11. This is answer choice B.
Answer:
17 tables are needed to seat 66 people
Step-by-step explanation:
This question can be solved using a rule of three.
One table seats 4 people. How many tables are necessary to seat 66 people.
1 table - 4 people
x tables - 66 people
Since we cannot have half a table, we round up
17 tables are needed to seat 66 people
