Answer:
B. 8 sandwiches
Step-by-step explanation:
You simply divide the number of minutes needed to make one sandwich into 32 minutes.
Length of the rectangle is 14 ft and width is 6 ft
Step-by-step explanation:
- Step 1: Let the width of the rectangle be x, then length = 8 + x. Find dimensions if area = 84 ft²
⇒ Area of the rectangle = length × width
⇒ 84 = x(8 + x) = 8x + x²
⇒ x² + 8x - 84 = 0
⇒ x² + 14x - 6x - 84 = 0 (Using product sum rule to factorize)
⇒ x(x + 14) - 6(x + 14) = 0
⇒ (x + 14)(x - 6) = 0
⇒ x = -14, +6 (negative value is neglected)
∴ x = 6 and x + 8 = 14
2/3 - x = 3/8
Hope this helps!
Answer:
31 pencils
Step-by-step explanation:
What we must do is reduce the range of responses, the first thing is to limit the numbers to the interval between 30 and 40.
If it is two by two and there is one left, it means that all the pairs are eliminated.
If it is five in five and there is one left over, the ones ending in 5 are also eliminated.
If it is three by three and there is one left over, the 33 and 39 are eliminated.
Taking this into account, the possibilities are reduced to two numbers only, 31 and 37.
37 is discarded because when it is grouped from five to five, there are 2 left over.
So the answer is 31, you have 31 pencils.
I think A... I might be wrong
