Answer:
Perimeter: 64 cm
Step-by-step explanation:
21 + 21 = 42 cm 11 + 11 = 22 cm
42 + 22 = 64 cm
Answer:
k = -7
Step-by-step explanation:
Solve for k:
-7 k - 44 = k + 12
Subtract k from both sides:
(-7 k - k) - 44 = (k - k) + 12
-7 k - k = -8 k:
-8 k - 44 = (k - k) + 12
k - k = 0:
-8 k - 44 = 12
Add 44 to both sides:
(44 - 44) - 8 k = 44 + 12
44 - 44 = 0:
-8 k = 12 + 44
12 + 44 = 56:
-8 k = 56
Divide both sides of -8 k = 56 by -8:
(-8 k)/(-8) = 56/(-8)
(-8)/(-8) = 1:
k = 56/(-8)
The gcd of 56 and -8 is 8, so 56/(-8) = (8×7)/(8 (-1)) = 8/8×7/(-1) = 7/(-1):
k = 7/(-1)
Multiply numerator and denominator of 7/(-1) by -1:
Answer: k = -7
So to divide the 8/9 by 2/9, just divide the numerator of the 8/9 by the numerator of 2/9. 8 / 2 = 4, so there are 4 groups of 2/9 in 8/9.
Then, Toby can make 4 bags of trail mix that are 2/9 pounds each.
Hope this helps!
