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1 year ago

15

-3+p/7=-5 help step by step please ???

1 answer:

Firdavs [7]1 year ago

5 0

Here’s an explanation! let me know if you need further clarification

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Evaluate C = 2 r, for r = 8.

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Answer:

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Step-by-step explanation:

Substitute r = 8 into the equation for C, hence

C = 2r = 2 × 8 = 16

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3 years ago

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3 years ago

use the elimination method to solve the system of equations choose the correct ordered pair 7x+4y=39 2y+4y=14

Anvisha [2.4K]

$x = 5 \: and \: y = 1.$

Step-by-step explanation:

$7x + 4y = 39 \: - {eq}^{n} (1)$

$2x + 4y = 14 \: \: - {eq}^{n} (2)$

Multiply Equation no (1) with 2 and Equation no (2) with 7.

$14 x + 8y = 78.$

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$( - ) \: \: \: ( - ) \: \: \: ( - )$

$0x + -20y = - 20$

$- 20y = - 20$

$y = \frac{ - 20}{ - 20}$

$y = 1$

Substitute the value of "y" in Equation no (1)

$7x + 4y = 39.$

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$7x = 35.$

$x = \frac{35}{7}$

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3 years ago

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