Write in 0 and 0 at the top: this indicates that if there are zero pennies, the height of the tower is 0. This is the point (0,0). Another point is (4, 28): a tower of 28 pennies is 4 cm tall.
Find the slope of the line connecting (0,0) and (4,28).
4cm - 0 cm
m = ----------------- = (1/7) (cm/penny)
28 - 0
The equation we need, relating # of pennies to height of tower, is
t = (1/7) (cm/penny)x, where x is the # of pennies.
Thus, if x = 1, then t=1/7 cm
And, if x =15, then t = 15/7 cm
And so on.
-x+3=2/3x-2
3=4/3x - 2
5=4/3x
X= about 3.846
Answer:
13 gallons of water
Step-by-step explanation:
Answer:
option A and E
Step-by-step explanation:
Option A is equivalent because of the commutative law of addition;
(A + B) + C = A + (B + C)
option E is also correct because multiplication rule of inside the brackets.
A - ( - B - C) = A + B + C
Answer:
Step-by-step explanation:
How is 16 related to 2? We multiply 2 by 8, obtaining 16.
How is 8 related to 64? We multiply 8 by 8, obtaining 64.
So 2/8 is equivalent to 16/16.
