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4 years ago

15

100 POINT QUESTION

1 answer:

Valentin [98]4 years ago

4 0

its not 100 points it 8 but i will still help you

the answer is 7.2 i believe

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which number round to 4100 when rounded to nearest hundred? mark all that apply. a.4008. b.4140. c.4060. d. 4109. e.. 4049

Alex

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4 years ago

Read 2 more answers

Find the value of x and y for the equation x+y5 7x+9y=6

Nastasia [14]

Answer:

$x = \frac{39}{2}$

$y = -\frac{29}{2}$

Step-by-step explanation:

Given

$x + y= 5$ --- (1)

$7x + 9y = 6$ ---- (2)

Required

Find x and y

Make x the subject in (1)

$x + y= 5$

$x = 5 - y$

Substitute 5- y for x in (2)

$7x + 9y = 6$

$7(5 - y) + 9y = 6$

Open bracket

$35 -7 y + 9y = 6$

Collect like terms

$-7y + 9y = 6 - 35$

$2y = -29$

Divide both sides by 2

$y = -\frac{29}{2}$

Substitute this for y in $x = 5 - y$

$x = 5 - (-\frac{29}{2})$

$x = 5 +\frac{29}{2}$

L.C.M

$x =\frac{10+29}{2}$

$x = \frac{39}{2}$

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3 years ago

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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