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2 years ago

15x ( 7 - 5y ) + 3 ( 5y - x ) - ( 4x + 3 ) ( 5y - 2 )

Mathematics

2 answers:

olga2289 [7]2 years ago

5 0

Answer:

$110x-95xy+6$

Explanation:

$15x ( 7 - 5y ) + 3 ( 5y - x ) - ( 4x + 3 ) ( 5y - 2 )$

expand:

$105x-75xy+15y-3x-\left(4x+3\right)\left(5y-2\right)$

simplify:

$105x-75xy+15y-3x-(20xy-8x+15y-6)$

open the brackets:

$-20xy+8x-15y+6+102x-75xy+15y$

$110x-75xy-20xy+15y-15y+6$

final answer:

$110x-95xy+6$

Sedbober [7]2 years ago

4 0

15x ( 7 - 5y) + 3 ( 5y - x) - ( 4x + 3) (5y - 2) = -95xy + 110x + 6 is your solution hope it helps :)!

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2 years ago

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Nat2105 [25]

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a)F

b)A

c)F

d)F

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b) The girls in the class are 4 and the total number of pupils in class are 7. So, the fraction is correct✅.

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Sergio [31]

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3 years ago

15x ( 7 - 5y ) + 3 ( 5y - x ) - ( 4x + 3 ) ( 5y - 2 )​

15x ( 7 - 5y ) + 3 ( 5y - x ) - ( 4x + 3 ) ( 5y - 2 )