Answer:
Step-by-step explanation:
cost price x .60 = 80
80/.60 = 133.33 was the cost price
Answer:
y= 3x
Step-by-step explanation:
This is honestly your basic times tables if we are being honest. We know that she read 3 paragraphs per minute. We also know that in 4 minutes, she read 12 paragraphs. 4 times 3 = 12. So the answer is y=3x.
A: Yes, the sum of two sides are greater than the third side.
B: Yes, the sum of two sides are greater than the third side. (Would be an equiilateral triangl.)
C: No, the sum of two sides are less than the third side.
In general, To determine if 3 side lengths are a triangle, use the triangle inequality theorem, which states that the sum of 2 sides of a triangle must be greater than the third side. Therefore, all you have to do is add together each combination of 2 sides to see if it's greater than the third side.
Answer:
The surface area is about 395.2 cm^2.
Step-by-step explanation:
S = 2*(6.72*12.7 + 5.78*(6.72 +12.7))
.. = 2*(85.344 +5.78*19.42)
.. = 2*197.5916)
.. = 395.1832