Answer:
area of circle=πr²=3.14×5²=78.5unit²
Answer:
120°
Step-by-step explanation:
Answer: x = $7, y = $6
Step-by-step explanation:
Let x be the cost of an adult ticket
Let y be the cost of a children's ticket
Translate these sentences to algebra:
At the circus, three adult tickets and five child tickets cost $51: 3x + 5y = 51
Five adult tickets and two child tickets cost $47: 5x + 2y = 47
Now we have two equations. Let's use substitution to solve.
3x + 5y = 51
3x = 51 - 5y
.: x = 17 - 5y/3
Now substitute this value of x into the second equation to find the numerical value of y:
5(17 - 5y/3) + 2y = 47
85 - 25y/3 + 2y = 47
-19y/3 = -38
-19y = -114
.: y = 6
Now find x:
x = 17 - 5y/3
x = 17 - 10
.: x = 7
So an adult ticket costs $7, and a child ticket costs $6 :)
Answer:
-0.574
Step-by-step explanation:
Subtract the two numbers to get the solution
Answer:
Option B) The height, in inches, of a typical apple tree
Step-by-step explanation:
Let
x----> the number of years, after the tree was planted
y ---> the height in inches, of a typical golden delicious apple tree
we have
Remember that
The y-intercept is the value of y when the value of x is equal to zero
In this problem
The y-intercept is the height of the tree when it was planted (x=0)
