Answer: d. He multiplied when he was supposed to divide
Step-by-step explanation:
He just multiplied across when he was supposed to divide (or cross multiply) to find the unit rate :)
4 books make 1 foot since there are 12 inches in a foot so 4 * 5 is 20
There are 20 books in the stack
Answer:
4b - 8
Step-by-step explanation:
2/3(6b - 12)
2/3 x 6 = 12/3 = 4
2/3 x 12 = 24/3 = 8
4b - 8
Answer:
3 1/15
Step-by-step explanation:
Product means multiply
Answer:
Diameter is the width = 7.64 ft
Step-by-step explanation:
Perimeter would need to be the arc of a semi circle measuring less than or equal to 12 Where perimeter therefore = 12* 2 = 24 24 / 3.14 = 7.64331210191 where 3.14 the value for pi and formula of a semi circle we use radius = 1/2 pi * 3.82 ^2 = D * pi = 7.65 and radius =7.64 / 2 = 3.82 so answer is the diameter = 7.64 ft