Answer: $255
Step-by-step explanation:
A store advertises 15% off an item which sells for $300. The sale item will then be calculated as:
= $300 - (15% × $300)
= $300 - (0.15 × $300)
= $300 - $45
= $255
The sales price is $255.
A 15% discount is similar to a 15% decrease because in both cases, one has to subtract the value of 15% from the selling price.
Answer:
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Answer:
f(x) = .8 (215 - .45 x)
f(x) = .8 (215 - .45 * 75) = .8 ( 215 - 34) = .8 (181) = 145
The tree trunk is a cylinder so we apply that formula:
It is VCylinder = density x pi x radius x height
So the given in our problem is:
Density = 45 lb/ft^3 = 720.8 kg / m³
Radius = 3ft
Height = 10 ft
Insert variables that in our equation:
VCylinder = 720.8 kg / m³ * pi * 3ft² * 10 ft = 5771.26 kgs
Answer:
100(1/a + 1/b)
Step-by-step explanation:
Machine A takes a hours to make 100 bolts
- Then machine A makes 100/a bolts in one hour
Machine B takes b hours to make 100 bolts
- Then machine B makes 100/b bolts in one hour
<u>Two machines will make:</u>
- 100/a + 100/b = 100(1/a + 1/b)
bolts in one hour
