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3 years ago

2/5 (s + 20) pls help

Mathematics

1 answer:

nevsk [136]3 years ago

6 0

Answer:

2s/5 + 8

Step-by-step explanation:

if you wanted it simplified..

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3 years ago

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3 years ago

The table shows the masses of four objects. A 2-column table with 4 rows. The first column labeled object has entries book, rock

Ede4ka [16]

Answer:

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Step-by-step explanation:

To convert kg>>>>N

You multiply by 9.8 (this is good for estimating, but use more decimal places like, 9.80665 for more exact calculations).

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see image

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2 years ago

Please solve the system of equations !!

Dominik [7]

$\bold{\huge{\red{\underline{ Solution}}}}$

$\bold{\underline{ We \: have\: given :-}}$

$\sf{ 2x + 7y = 3 ...eq(1 ) }$

$\sf{ x = -4y ...eq(2) }$

Here, we will use the substitution method for solving the above equations.

$\bold{\underline{Subsitute \: eq(1)\:in \: eq(2)}}$

$\sf{ 2(-4y) + 7y = 3 }$

$\sf{ -8y + 7y = 3 }$

$\sf{ - y = 3 }$

$\sf{ y = - 3. ...eq( 3) }$

$\bold{\underline{Subsitute \: eq(3)\:in \: eq(2)}}$

$\sf{ x = -4(-3) }$

$\sf{ x = 12 }$

$\sf{\blue{ Hence, \: The \:value \:of \:x \:and \:y \:is\: 12\: and \:-3}}$

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2 years ago

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tekilochka [14]

We can help you and somebody can help you with calculator

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3 years ago