Answer: She worked as a carpenter for 12 hours and a blacksmith for 18 hours.
Step-by-step explanation:
18*25 = 450
12*20 = 240
240 + 450 = 690
12 + 18 = 30.
Equation- 1/4c+3=9
solve the equation to get c=24
24 pieces of cake
Answer:
84 feet
Step-by-step explanation:
Let the feet be A
1 foot = 0.33 yard
A feet = 28 yards
Cross multiply
A x 0.33 = 28 x 1
Divide both sides by 0.33
A x 0.33/0.33 = 28/0.33
A = 84.84
A = 84 feet
Therefore, there are 84 feet in 28 yards
Well per book there are 4 spots it could be in. So the ratio of books per spots is 1:4, you multiply this by 4 because of four books and her 4:16, making the amount of ways to set them being 16.