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3 years ago

I need help on all of these please help i’ll mark brainliest!!! -11 + x = 7X - 5

Mathematics

2 answers:

nalin [4]3 years ago

8 0

I don't know what your looking for, so be more specific, but I'm assuming your solving for x, so that's would be

x = -1

Basile [38]3 years ago

8 0

Answer:

We can simply solve all of these by simplifying them :)

1 . 13 - 4x = 1 - x =

x = 4

2 . 7a - 3 = 3 + 6a =

a = 6

3 . 5 + 2x = -2x + 6 =

x = 1/4

4 . -11 + x = 7x - 5 =

x = -1

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3 years ago

A rectangular swimming pool is 25 ft long and 20 1/2 ft wide, and it must be filled to a depth of 4 1/2 ft. One cubic foot of wa

bazaltina [42]

ANSWER

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EXPLANATION

The volume of the rectangular swimming pool is

$V = l \times w \times h$

where l=25ft and w=20½ ft.

when it is filled to a depth of 4½ ft ,then the height is , h=4½ ft.

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$V = 25\times 20.5\times 4.5$

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