A) 90-55=35 since a right angle is 90 total\
b)ii
Answer:
x=1.75 hour
Step-by-step explanation:
200km=2.5
140km=x
2.5 * 140=200x
350=200x
x=350/200
x=1.75
the time it will take is x=1.75 hour
X^2
.........
...........m.
The total cost when Q = 10 is $150
Step-by-step explanation:
Th equation y = mx + b represents any linear function, where
- m is the unit rate
- b is the fixed amount
∵ The fixed costs are $100
∵ The variable costs are $5 per unit
∵ There are Q units
- Represent the total cost by the function c(Q)
∴ c(Q) = 5 Q + 100, where c(Q) is the total cost of Q units
∵ c(Q) = 5 Q + 100
∵ Q = 10
- Substitute Q by 10
∴ c(10) = 5(10) + 100
∴ c(10) = 50 + 100
∴ c(10) = 150
The total cost when Q = 10 is $150
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