Answer:
X=11 Y=9
Step-by-step explanation:
There are total 30 students in the piano class.
<h3>What is Ratio and Proportion ?</h3>
When a number can be divided by another number then they can be written as p : q , when two ratios can be equated using an equal sign then they are said to be in proportion.
It is given that the total number of girls is 40% of the total students
The ratio of total students to girls is 100 :40
= 10 :4
= 5 : 2
It is also given that in the total number of students 12 were girls
Let total students be x
Then the ratio is x : 12
As both the ratio are same and so can be equated and the proportion will be
5 : 2 = x : 12
5/2 = x /12
x = 30
Therefore there are total 30 students in the piano class.
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Answer:
You didn't attach an image so I will assume that AC and BD are opposite sides. In a parallelogram, opposite sides are congruent which means:
2y + 7 = 3y - 4
-y = -11
y = 11
Answer:
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Step-by-step explanation:
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<u>Translation</u> the <u>graph</u> of the <u>function</u> 
a units <u>to the right</u> gives you the function 
If the graph of the function 
is translated 6 units to the right, then the function becomes
Answer: correct choice is A
