Answer question above. Will mar brainli if you give explanation!

Mathematics

2 answers:

MAVERICK [17]2 years ago

7 0

Answer:

D) 520 ft

Step-by-step explanation:

5(20) + 8(20) + 2(20) + 4(20) + 3(20) + 4(20) = 26(20) = 520 ft

Naddik [55]2 years ago

6 0

Answer:

D. 520 feet

Step-by-step explanation:

Since there are 26 tiles surrounding the garden and each tile is worth 20 feet, 26 times 20 is 520.

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Un televisor costaba $9.000 y hoy cuesta $500 menos, ¿cuál es el porcentaje de descuento?

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3 0

2 years ago

Help and explain pls and thankyouu

defon

Hello,

$\left\{\begin{array}{ccc}2x-y&=&7\\-2x+3y&=&9\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}2y&=&16\\-2x+3y&=&9\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}y&=&8\\-2x+3*8&=&9\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}x&=&7.5\\y&=&8\\\end{array} \right.\\\\$

Answer C

$\left\{\begin{array}{ccc}x-2y-3z&=&5\\x+2y+3z&=&7\\x+z&=&3\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}2x&=&12\\x+2y+3z&=&7\\x+z&=&3\\\end{array} \right.\\\\\\\left\{\begin{array}{ccc}x&=&6\\2y+3z&=&1\\z&=&-3\\\end{array} \right.\\\\\\\\\left\{\begin{array}{ccc}x&=&6\\y&=&5\\z&=&-3\\\end{array} \right.\\\\\\$