Answer:
The system will be:
x - y = 12
3x + 5y = 100
Step-by-step explanation:
Let The number of three-point questions ⇒ x
And the number of five-point questions ⇒ y
The giving a test has 12 more three-point questions than five-point questions.
So, x - y = 12
The test is worth 100 points.
So, 3x + 5y = 100
So. the system which represents this information is:
x - y = 12
3x + 5y = 100
And the solution of the system is x = 20 and y = 8
The number of three-point questions ⇒ x = 20 questions.
The number of five-point questions ⇒ y = 8 questions.
Answer:
The correct answer to the question is
e. If is likely that between 35% and 41% percent of the driving population would be willing to pay higher gas prices to protect the environment.
Step-by-step explanation:
The margin of error expresses the number of percentage points of error is contained within survey result. A large error margin therefore reduces the level of dependence on a given statistic. The margin of error describes the expected variation between the statistic sample and the real population value.
In the question, the option
e. If is likely that between 35% and 41% percent of the driving population would be willing to pay higher gas prices to protect the environment , clearly depicts the definition of margin of error as it shows the expected variance from te real population
B.) (15 + 2)x because they both are getting multiplied by the value of x making it 17x.
P = I * R * T. Divide both sides by I and T to get R = P/(IT)
for d, you subtract 2a from both sides to get -5d = 30 - 2a
then divide both sides by -5 to get d = (30 - 2a)/-5 or
d = (2a - 30)/5