3(1,000,000)=3,000,000
3(100,000)=300,000
2(100)=200
3,300,200
Answer:
40 minutes
Step-by-step explanation:
Given 1 mile = 8 minutes
5 miles = (5 × 8) minutes
5 miles = 40 minutes
It would take 40 minutes to run 5 miles
Set up and solve an equation:
3(90-x) = (180-x). Then 270 - 3x = 180 - x, or 270 - 180 = 2x.
90 = 2x, so x = 45 deg.
Is this true? 3(90-45) = (180-45)? If so, x = 45 degrees is correct.
Answer:
Positive 2
Step-by-step explanation:
its like ur subtracting 9+ (-7)
its basically 9-7=2
but not all problems r like this.
Brainlest plz
The z-score of the sale of mobile phones on that day is 1.75
Step-by-step explanation:
The formula of z-score is z = (x - μ)/σ, where:
- x is the score
- μ is the mean
- σ is the standard deviation
∵ The mean sale was 45
∴ μ = 45
∵ The standard deviation was 4
∴ σ = 4
∵ 52 mobile phones were sold on a particular day
∴ x = 52
To find z-score of the sale of mobile phones on that day substitute the values of x, μ, and σ in the formula of z-score
∵ 
∴ 
∴ z = 1.75
The z-score of the sale of mobile phones on that day is 1.75
Learn more:
You can learn more about z-score in brainly.com/question/7207785
#LearnwithBrainly