Answer:
Step-by-step explanation:
To determine for which value of x a pair of expressions will be equal, we will need to set them equal to each other and then solve for x.
First, we can add 4 to each side
Now we can subtract 2x from each side
Now, just to check our answer, we can plug in our answer back into the original equation to see whether we get the same result for each side
The temperature on Tuesday at noon is 5°F above 38°F ⇒ answer B
Step-by-step explanation:
On Monday morning the temperature was 38°F, then
- By the afternoon the temperature had risen 22°F
- On Tuesday morning the temperature had dropped 27°F since Monday afternoon
- It rose 10°F by noon
We need to find how many degrees above or below 38°F the
temperature is on Tuesday at noon
The word rise mean positive number and the word drop means negative number
∵ On Monday the temperature has risen 22°F
∴ + 22°F
∵ On Tuesday morning the temperature had dropped 27°F since
Monday afternoon
∴ - 27°F
∵ It rose 10°F on Tuesday noon
∴ + 10°F
∵ The change in the temperature from Monday morning to Tuesday
noon = 22 + - 27 + 10 = 5 ⇒ (positive number)
- That means the value of the temperature is positive
∴ The temperature is 5°F above 38°F
The temperature on Tuesday at noon is 5°F above 38°F
Learn more:
You can learn more about word problems in brainly.com/question/10046556
#LearnwithBrainly
*Missing Information: Total number of barrels are 60 million*
The correct answer is: Option (C) $20
Explanation:
As we are interested in finding the cost for a barrel of gasoline, we need to read the percentage of gasoline from the pie-chart first—which is 34%.
Now number of barrels containing gasoline = 34% of 60 million barrels = million barrels
For all the barrels, the total income is $408 million; therefore, in order to find the per-barrel cost, we need to divide $408 by 20.4:
Hence the correct answer is $20 (Option C).
Answer: a. Number of visitors
b. average() amount spent per person by visitors to the park
c. Yes , we know the average amount spent per person byvisitors to the park. It is $28 per person.
Step-by-step explanation:
- A population is a group of all members according to the researchers's subject of interest.
- A parameter is a number that gives the measure of a factor generated from population (for ex Population mean () , population proportion (p) ).
- A sample is a finite subset of the population that represents the population in an analysis.
- A statistic is a number that gives the measure of a factor generated from sample (for ex sample mean () ,sample proportion () ).
For the given situation, A researcher wishes to estimate the average amount spent per person by visitors to a theme park.
Population by researcher's point of interest : "Number of visitors"
Parameter of interest : "average() amount spent per person by visitors to the park"
Since he takes a random sample of forty visitors and obtains an average of $28 per person.
Here , sample : forty visitors
And average amount spent per person by visitors to the park from sample :
$28 per person.
The sample means is the best point-estimate for the population mean.
So , the best point-estimate for average amount spent per person by visitors to the park here is $28 per person.
Answer:
4
Step-by-step explanation:
The median is the middle number
There are 15 data points
15/2 = 7.5
The middle number is the 8th number
The median is 4