Answer:
A. x=4 y=11
Step-by-step explanation:
y=x+7
y=-2(y-7)+19
y=-2y+14+19
y=-2y+33
y+2y=33
y(1+2)=33
y=33/3
y=11
x=4
Using the percentage concept, it is found that 75% of the population of Gorgeous Sunset is on Beautiful Sunrise now.
<h3>What is a percentage?</h3>
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:
In this problem, we have that:
- We consider that the population of both Beautiful Sunrise and Gorgeous Sunset islands is of x.
- There is a fiesta at Beautiful Sunrise, and a number a of people from Gorgeous Sunset are coming, hence, there will be x + a people at Beautiful Sunrise and x - a people t Gorgeous Sunset.
The percentage of people from Gorgeous Sunset is on Beautiful Sunrise now is:
Now the number of people on Beautiful Sunrise is seven times the number of people on Gorgeous Sunset, hence:
We can find a <u>as a function of x</u> to find the percentage:
Then, the percentage is:
75% of the population of Gorgeous Sunset is on Beautiful Sunrise now.
You can learn more about the percentage concept at brainly.com/question/10491646
Answer:
-1/3
Step-by-step explanation:
We can find the slope using the slope formula
m = ( y2-y1)/(x2-x1)
= (4-5)/(10-7)
= -1/3
Answer:
64
Step-by-step explanation:
Lets take mei lin's first four test scores to be 60 since it average out to be 60.
After the 5th test,
mei lin new average score is
Answer:
ZX
Step-by-step explanation:
A diameter is a chord of a circle that passes through the center of the circle.
A chord of a circle is a segment inside the circle whose endpoints are on the circle.
Chords of the circle:
ZY, ZX, YW, UV
Of all those chords, only two pass through the center of the circle:
ZX, YW
Of the two diameters, only one is a choice:
ZX
Answer: B. ZX