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Dovator [93]
3 years ago
15

Yo if you can help me I'll give brainliest.

Mathematics
2 answers:
dolphi86 [110]3 years ago
8 0

Answer:

x=5

y=-5

Step-by-step explanation:

Luden [163]3 years ago
7 0

Answer: x = 5; y = -5

\left \{ {{-7x-3y=-20} \atop {3x+6y=-15}} \right. \\\\\left \{ {{-7x-3y=-20} \atop {x+2y=-5}} \right. \\\\\left \{ {{-7(-5-2y)-3y=-20} \atop {x=-5-2y}} \right. \\\\\left \{ {{35+14y-3y=-20} \atop {x=-5-2y}} \right. \\\\\left \{ {{11y=-55} \atop {x=-5-2y}} \right. \\\\\left \{ {{y=-5} \atop {x=5}} \right.

Step-by-step explanation:

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Solve the following problems. I REALLY NEED HELP 80 POINTS!
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Answer:

a   10 yd   2ft  7 in

b 10 yd  1 ft  2 in

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d.  4840 sq  yd  7 sq ft  119 sq in  

Step-by-step explanation:

a.      2 ft. 5 in. +

9 yd. 3 ft. 2 in.

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9 yd   5ft   7 in

but 3 ft = 1yd

9 yd   5ft   7 in

+1yd   - 3ft

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b. 4 yd. 8 in

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10 yd       14 in

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97 yd   4 ft   24 in

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97 yd   4 ft   24 in

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 4839  sq yd  15 sq ft   263 sq in

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4840 sq  yd  7 sq ft  119 sq in              

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3 years ago
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Answer:

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