2001 gallons used in 5 days, so the average for one day is 2001/5=400.2 gallons.
Answer:
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Answer: 78.54
Step-by-step explanation:
Answer:
73.1 inches
Step-by-step explanation:
We solve for this using z score formula.
z-score is z = (x-μ)/σ,
where x is the raw score,
μ is the population mean
σ is the population standard deviation.
x = unknown = randomly selected male's height
μ = 70.3 inches
σ = 4.1 inches
z = is not given but we are given its percentile which is 75
The z score for a 75th percentile = 0.674
Hence,
0.674 = x - 70.3/4.1
Cross Multiply
0.674 × 4.1 = x - 70.3
2.7634 = x - 70.3
x = 70.3 + 2.7634
x = 73.0634 inches
The height of the randomly selected male = 73.0634
Therefore, the height of the randomly selected male to the nearest tenth of an inch is 73.1 inches
⓵ Write down both equations :
X ÷ 3 = 700
X ÷ 7 = 300
⓶ Solve both of these equations :
X ÷ 3 = 700
× 3 × 3
↓
X = 2100
X ÷ 7 = 300
× 7 × 7
↓
X = 2100
Now that you’ve solved each equation and that “X” is worth the same thing in both, you know that you calculated everything correctly!
If you really want to triple check your answers, you could test that number to see if it works :
2100 ÷ 3 = 700? → YES
2100 ÷ 7 = 300? → YES
↠ So the answer to your question is : The number is 2100.
I really hope this helped, if there’s anything just let me know! ☻