Answer: Calculator online for a rectangular prism. Cuboid Calculator. Calculate the unknown defining surface areas, lengths, widths, heights, and volume of a rectangular prism with any 3 known variables. Online calculators and formulas for a prism and other geometry problems.

Step-by-step explanation: mark me branliest

4 0

2 years ago

Solve the simultaneous equation 2x+5y=6 and 5x-2y=9

Ilia_Sergeevich [38]

Answer:

$x = \frac{57}{29} \ , \ y = \frac{12}{29}$

Step-by-step explanation:

2x + 5y = 6 --------( 1 )

5x - 2y = 9 --------( 2 )

_____________

( 1 ) x 5 => 10x + 25y = 30 -----------( 3 )

( 2 ) x 2 => 10x - 4y = 18 ----------- ( 4 )

______________

( 3 ) - ( 4 ) => 0 + 29y = 12

$y = \frac{12}{29}$

Substitute y in ( 1 ) =>

$2x + (5 \times \frac{12}{29}) = 6\\\\2x + \frac{60}{29} = 6\\\\2x = 6 - \frac{60}{29}\\\\2x = \frac{174 - 60}{29}\\\\x = \frac{114}{29 \times 2}\\\\x = \frac{57}{29}$

4 0

2 years ago

Can I get help with this???

exis [7]

5x + 13 + 3x + 7 = 180

8x +20 = 180

8x = 160

x = 20

7 0

2 years ago