Can someone help me with the math on my page i will mark them brainliest pls
2 answers:
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Answer:
Step-by-step explanation:
it is given in question that
sample space n=34
μ the population mean =120
the sample mean
the population standard deviation σ=20
we have to find the null hypothesis and alternative hypothesis
null hypothesis
the average braking distance for a small car travelling at 65 miles per hour equals to 120 feet
so
Alternative hypothesis
the average braking distance for a small car travelling at 65 miles per hour not equals to 120 feet
so
Answer:
The number of grilled cheese sandwiches sold was 132 and the number of deep fried Twinkies sold was 271
Step-by-step explanation:
Let
x -----> the number of grilled cheese sandwiches
y -----> the number of deep fried Twinkies
we know that
The system of equations that represent this scenario is equal to
x+y=403 ------> equation A
4.85x+2.95y=1,439.65 ------> equation B
Solve the system by graphing
Remember that the solution is the intersection point both graphs
The solution is the point (132,271)
see the attached figure
therefore
The number of grilled cheese sandwiches sold was 132 and the number of deep fried Twinkies sold was 271
