Let x is the <span>unknown number
</span><span>quotient of an unknown number and 12 : x/12
</span><span>49 more than the quotient of an unknown number and 12 : x/12 + 49
so equation:
</span>x/12 + 49 = 53
Answer:
9342
Step-by-step explanation:
(09-36)(4-350)
Clear brackets, we have
36-3150-144+12600
=36-3294+12600
=-3258++2600
=9342
Answer:
b. 4+7x-2
Explanation:
when you add like terms for the first equation it becomes 7x-6
the second one becomes 7x+2
the third one becomes 7x-6
and the last one is also 7x-6
which means the second one is not equivalent
Answer:
The Euclidean distance between the two given points is 
.
Step-by-step explanation:
K-NN is used to predict the variable y for a new point with 
Distance is calculated in the Euclidean sense.
The Euclidean distance between two points is given by the formula:
The point is 
The Euclidean distance between the two points is given by:
Thus, the Euclidean distance between the two given points is .
Answer:
Class 7A collected 4.8 ounces of pure gold.
Step-by-step explanation:
<u>Key skills required are: Percentages, Multiplication</u>
<u />
- We only need the information about Class 7A. They collected 40 oz that contains 12% gold.
- In other words, this means that 12% of that 40 oz gold sand is pure gold.
Here we have to do 12% x 40 to find the number of oz of pure gold. We first have to convert 12% into a decimal. Divide it by a 100 (or move the decimal point 2 places to the left) and you will get 0.12.
<em>Do 0.12 x 40 and you will get 4.8</em>
Therefore, there are 4.8 oz of pure gold in Class 7A's gold sand
