(8 + 4 X 3) x 6 32 – 2 x3

Mathematics

2 answers:

kaheart [24]3 years ago

4 0

Answer:

120 and 26

Step-by-step explanation:

( 8 + 4 * 3 ) * 6

Using BODMAS rule,

[ 8 + ( 4 * 3 ) ] * 6

= ( 8 + 12 ) * 6

= 20 *6

= 120

32 – 2 x 3

Using BODMAS rule,

32 - ( 2 * 3 )

= 32 - 6

= 26

Hope this answer was helpful!!

Regards..

german3 years ago

4 0

Answer:

48 + 72x, 26

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the length of a rectangle is five feet less than its width. If the area of the rectangle is 84 square feet, find its dimensions

KIM [24]

Let
x---------> the length of the rectangle
y--------> the width of the rectangle

we know that
A=84 ft²
[area of rectangle]=x*y-----> 84=x*y-----> equation 1
x=y-5------> equation 2
substitute 2 in 1
84=[y-5]*y-----> 84=y²-5y---------> y²-5y-84=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solution is
y=12
x=y-5-----> x=12-5-----> x=7

the answer is
the length of the rectangle is 7 ft
the width of the rectangle is 12 ft