3 years ago

Yooo help me with number one pls??

Mathematics

2 answers:

PtichkaEL [24]3 years ago

5 0

Answer:

Ethier A or D

Step-by-step explanation:

dlinn [17]3 years ago

5 0

The answer is d

Y=5x

Explanation

Y=5(3)=15
Y=5(1)=5

It is the only one in which you can get both 5 and 15.

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Y * x = 20 y + x = 9 what numbers are y and x equal to?

Ksivusya [100]

$y = 9 - x$
Substitute into
$y \times x = 20 \\ (9 - x) \times x = 20 \\ { - x}^{2} + 9x = 20 \\ {x}^{2} - 9x + 20 = 0 \\ (x - 5)(x -4) = 0 \\ x = 5 \: or \: x = 4$
When x = 5,
$y = 9 - 5 \\ y = 4$
When x = 4,
$y = 9 - 4 \\ y = 5$

x = 5, y = 4
x = 4, y = 5

Hope this helps. - M

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3 years ago

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Solnce55 [7]

Answer:

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Step-by-step explanation:

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3 years ago

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riadik2000 [5.3K]

Answer:

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Step-by-step explanation:

(2.6 × 106) + (4.2 × 106)

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kirill115 [55]

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shtirl [24]

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