Answer: 3
Explanation: (7x7) + (7x3) = 7x10
7x7 = 49
7x3 = 21
7x 10 = 70
49+21= 70
Hope this helps! <3
0.7<span> and </span>0.70<span> are two ways to say 7/10
hope this helps!</span>
Z-score if Tobi scored 145 on an iq test with a mean of 100 and a standard deviation of 15 is 3.
According to the given question.
Tobi scored 145 marks on an iq test.
⇒ x = 145
Mean, μ = 100
Standard deviation, σ = 15
As we know that,
A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of values.
And it is calculated by formula
Z = x -μ/σ
Where,
Z is a Z-score
μ is mean
x is the observed value
Therefore,
The Z-score if Tobi scored 145 on an iq test with a mean of 100 and a standard deviation of 15
= 145 - 100/15
= 3
Hence,Z-score if Tobi scored 145 on an iq test with a mean of 100 and a standard deviation of 15 is 3.
Find out more information about Z-score here:
brainly.com/question/15016913
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Answer:
18 8/9 pots
Step-by-step explanation:
Total potting soil = 5 2/3 liters
Potting soil per pot = 3/10 liters
How many pots can Yao Xin fill?
Number of pots Yao Xin can fill = Total potting soil / Potting soil per pot
= 5 2/3 liters ÷ 3/10 liters
= 17/3 ÷ 3/10
= 17/3 × 10/3
= (17*10) / (3*3)
= 170/9
= 18 8/9
Number of pots Yao Xin can fill = 18 8/9 pots
