Just think about what is happening. Multiplying an unknown and then adding 3. There are several ways to do this;
A number multiplied by 8 is added to 3.
3 plus a quantity multiplied by 8
The ones you have to be careful for are the ones where order matters. Don't forget PEDMAS your order of operations.
Answer:
40
Step-by-step explanation:
80% of the test = 32 questions
100% of the test = x questions
Cross multiply
80*x = 100 * 32 Combine the right
80x = 3200 Divide by 80
x = 3200/80
x = 40
There are 40 questions on the test.
Average is 12
15 + 10 + 11 + 13 + 11 = 60
60/5 = 12...average
Answer:
At t=1, Rate of Change=-36.86
At t=10 hours, Rate of Change =-0.0088
Step-by-step explanation:
The function which describes the number of facts of a certain type which are remembered after t hours is given as:
To determine the Rate of Change at the given time, we first look for the derivative of f(t).
Applying quotient rule:
At t=1
=-36.86
At t=10 hours
=-0.0088
Answer:
84:2 42/1
Step-by-step explanation:
i think
hope ths helps
