Answer:
top model
Edna wins 12
Step-by-step explanation:
Edna has 3 for Every 5 her dad has won
The top diagram models correctly
3+8 = 8
They play 32 games
Divide 32 by 8
32/8 =4
3*4 = 12 Edna will win 12
5*4 = 20 dad will win 20
It’s decreasing 2 degrees per hour. It’s starting at 82 degrees. The first hour decreases to 80 degrees. It’s hard to explain but the slope is -2 degrees per hour.
Answer:
9 x + 8 y = 10 (I)
y = -4x + 7 (II)
One way is to rewrite the second as
4x + y = 7
Now multiply this equation by 8
32 x + 8 y = 56
9 x + 8 y = 10 and now subtract the equations
23 x = 46 this gives x as 2
From equation (II) y = -4 (2) + 7 = -1
So our values are (2, -1)
Check:
(I) 9 x + 8 y = 10 9 * 2 - 8 = 10
(II) 4 x + y = 7 or 4 * 2 - 1 = 7
Or you can substitute equation (II) directly into equation (I)
Assuming that this is a linear relationship you must find the rate of change...$23.81-$20.70= $3.11. 3.11 is how much it changed that year. What that also gives you is how much you bought the post for at 0 years by subtracting $20.70 and the $3.11 = the price of the poster. This gives us the equation y=3.11(x)+17.59
Where Y is the value and X is the amount of years.
