Answer:
X=100 degrees. V=60 degrees
Step-by-step explanation:
Isosceles triangle makes the base angles the same. 40x2=80. 180-80=100.
Equilateral triangle makes the angles all the same. 180/3=60.
If #peaches = x and #plums = y we can write the following equations:
x+y=15
0.89x + 0.39y = 8.85
and x and y are whole numbers.
converting the first to x=15-y and plugging it into the second, you get
0.89(15-y) + 0.39y = 8.85 =>
13.35 - 0.89y + 0.39y = 8.85 =>
4.5 = 0.5y =>
y = 9
so x = 15-9 = 6
She bought 9 plums and 6 peaches.
Answer:
4
Step-by-step explanation:
Pick two points on the line
(0,-5) and (1,-1)
We can find the slope using
m = (y2-y1)/(x2-x1)
= ( -1 - -5)/(1 - 0)
(-1+5)/(1-0)
4/1
= 4
Y varies with x
so y/ x = constant
so, y1/x1 = y2/x2
6/9 = 18 / x2
so x2 = ( 9*18)/6
x2 = 27
another solution
y varis with x
y inceased by 3 times
so x must increase 3 time of the intial value
x(new) = 9*3 = 27
The rate of change is 0.5 which means that each game cost .50 cents
The initial value is 2 which means that you must initially pay $2.00