13x – 51 10x - 33 find bc
1 answer:
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Volume of a cone: 1/3
r²h
r is the radius (diameter ÷ 2) and h is the height.
Find the radius first using the diameter: 2
÷ 2 = 1.25
Now plug in the numbers into the formula.
1/31.25²10 = <span>16.4
</span>
The volume of the cone is 16.4 cubic feet.
r is the radius (diameter ÷ 2) and h is the height.
Find the radius first using the diameter: 2
Now plug in the numbers into the formula.
1/3
</span>
The volume of the cone is 16.4 cubic feet.
Answer:
£210
Step-by-step explanation:
A decrease of 30% represents 70% of the original cost.
100% represents the original cost
Divide the price by 70 to find 1% then multiply by 100 for original cost
original cost = × 100 = 2.1 × 100 = £210