Mathematics: 2.5z=10 write and solve equations

2.5z=10 write and solve equations - id251012002203, jovellabreu12

goldenarrow

18.03.2021

z = 4

Step-by-step explanation:

2.5x = 10

divide by 2.5

z = 4

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antboogie7615

04.09.2022

14.55 square inches

Step-by-step explanation:

From the figure it is given that,

The circumference of the top rim of a cone shaped paper cut = 2πr = 7.87 inches

The slant height is l = 3.7 inch

Therefore the least amount of paper which can form a cone shaped cup is the surface area of the cone.

The surface area of the cone is given as :

$A=\frac{2 \pi r l}{2}$

$A=\frac{(2 \pi r) (l)}{2}$

$A = \frac{(7.87) \times (3.7)}{2}$

$A=\frac{29.119}{2}$

A = 14.55 square inches

Amount of paper required = 14.55 square inches

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