Use a proportion:
Yardstick is 3 feet long
Answer: The required value of y is 6.
Step-by-step explanation: We are given that y varies directly as x and y = 9 when
We are to find the value of y when x = 1.
According to the given information, we have
When y = 9 and we have from equation (i) that
So, equation (i) becomes
Therefore, when x = 1, we get
Thus, the required value of y is 6.
A
B
C
D
Since triangle M' is the image of triangle M under a dilation, the center of the dilation is: B. B.
In Mathematics and Geometry, a dilation is a type of transformation that is used for altering the dimensions of a geometric figure, but not its shape.
Generally speaking, the coordinates of the pre-image can be dilated by using a scale factor that is centered at the point B by using this mathematical expression:
(x, y) → (k(x - a) + a, k(y - b) + b)
In conclusion, the center of the dilation would be at point B when the three vertex of both triangle M' and triangle M are connected.
Read more on dilation here: brainly.com/question/11812796
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Answer:
B
Step-by-step explanation:
trust me
The required number of girls in the school assembly is 1380.
Given,
There were 1200 boys at a school assembly. The ratio of boys to girls at the assembly was 20:23. Number of girls in the assembly line is to be determined
The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.
Representation of ratio of two values a and b, ratio = a:b.
Let the number of girls in the school assembly be x.
There were 1200 boys at a school assembly. The ratio of boys to girls at the assembly was 20:23. So the ratio can be written as,
1200 : x = 20 : 23
1200 / x = 20 / 23
x = 1200 * 23 / 20
x = 60 * 23
x = 1380
Here, the number of girls in the school assembly is 1380.
Thus the required number of girls in the school assembly is 1380.
Learn more about ratio here:
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I believe the answer is 1,600 girls
B) 1 and 4
C) 2 and 4
D) 3 and 5