32 doughnuts can be bought with $16.
Step-by-step explanation:
One dozen doughnuts = $6.00
One dozen = 12
$6.00 = 12 doughnuts
$1.00 = 
Therefore, 2 doughnuts can be bought for $1.
For $16 dollars;
No. of doughnuts = Amount * Doughnuts per dollar
32 doughnuts can be bought with $16.
Keywords: division, multiplication
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Answer:
9.13889
Step-by-step explanation:
.........................
Given:
Mean, μ = 196
Std. dev., σ = 22
A sample size of 50 (> 30) is large enough to provide meaningful data.
The random variable is x = 200.
The z-score is
z = (x - μ)/σ = (200 - 196)/22 = 0.1818
From normal distribution tables, obtain
Prob(X < 200) = 0.572 = 57.2%
Answer: 57.2%
They consists of equations and unknown variables. There are 4 PCs and 8 Mac in the room
<h3>System of equation</h3>
They consists of equations and unknown variables
Let the number of PCs be x
Let the number of Mac be y
If Mke has 12 computers, then;
x + y = 12
If there are two Macs for every PC in his classroom, then;
y = 2x
Substitute
x + 2x = 12
3x = 12
x = 4
Recall y = 2x
y = 2(4)
y = 8
There are 4 PCs and 8 Mac in the room
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