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Tanya [424]
3 years ago
7

I need help please help me

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
7 0

Answer:

a. 85 m

b. 96 cm

Step-by-step explanation:

Work for (a.)

  • 95 x 2 = 190.
  • 360 - 190 = 170
  • 170 ÷ 2 = 85
  • Final Answer: 85 m

Work for (b.)

  • 58 x 2 = 116
  • 5568 ÷ 58 = 96
  • To make sure: 96 x 58 = 5568
  • Final Answer: 96 cm

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Answer:

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Step-by-step explanation:

x + y = 5

xy = 6

Solve the first equation for x.

x = 5 - y

Substitute 5 - y for x in the second equation.

xy = 6

(5 - y)y = 6

5y - y² = 6

y² - 5y + 6 = 0

Factor.

(y - 2)(y - 3) = 0

y - 2 = 0  or y - 3 = 0

y = 2  or y = 3

Now substitute 2 for y in the first equation and solve for x.

x + y = 5

x + 2 = 5

x = 3

One solution is x = 3; y = 2, or (3, 2).

Now substitute 3 for y in the first equation and solve for x.

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Another solution is x = 2; y = 3, or (3, 2).

Answer: (3, 2), (2, 3)

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Step-by-step explanation:

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