3x - 2y = 7
-2y = -3x + 7
y = 3/2x - 7/2....slope of this line is 3/2. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So the slope we need is -2/3 (see how I flipped the slope and changed the sign)
y = mx + b
slope(m) = -2/3
(-3,-2).....x = -3 and y = -2
now we sub and find b, the y int
-2 = -2/3(-3) = b
-2 = 2 + b
-2 - 2 = b
-4 = b
so ur perpendicular equation is : y = -2/3x - 4 <==
20 cans in kilograms = 336 grams * 20 cans / 1000 = 6.72 kg
Answer:
2
Step-by-step explanation:
Method- 56-25=31-25=6
I subtracted 25 until I cant no more so I only did it 2 times so 2 quarters are in the piggy bank.
Quarters-2
Then since the remainder was 6 that means there was only 1 penny and 1 nickel.
Pennies- 1
Nickels-1
