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hogwartsalicia
09.04.2021 •
Mathematics
Tob
ctions of three-dimensional figures to their corresponding shapes.
a slice of a right rectangular pyramid parallel to its base
a slice of a right square pyramid perpendicular to its base but
not through its top vertex
a slice parallel to the base of a right rectangular prism with a
square base
trapezoid
arrowBoth
square
arrowBoth
rectangle
arrowBoth
Solved
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Ответ:
Ответ:
Step-by-step explanion sorry need the points
Ответ:
2000 + 0.025*2000 = £ 2050 after first year
2050+2050*x/100=2050(1+x/100) after second year
2050(1+x/100) + 2050(1+x/100)*x/100 = 2050(1+x/100)(1+x/100) = =2050(1+x/100)² after third year
2050(1+x/100)² = 2124.46
(1+x/100)² =2124.46/2050
1+x/100 =√(2124.46/2050)
x/100 = √(2124.46/2050) -1
x=(√(2124.46/2050) -1)*100
x=1.80%
4) x - the cost of the weekly train ticket before the increase.
x+x*0.125=1.125x - the cost of the weekly ticket after increase
1.125x = 225
x=225/1.125 = £ 200