4 years ago

Please help i will mark brainly!

Mathematics

1 answer:

mariarad [96]4 years ago

8 0

Answer:

D is the answer. :)

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One day, a person went to a horse racing area. Instead of counting the number of humans an horses, he conuted 74 heads and 196 l

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37 horses and 37 people

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3 years ago

In each of the following ,make y the subject and hence find the value of y when a=2, b=3 ,and c=4.

zvonat [6]

Part i

$\dfrac{2a-7}{6y} = \dfrac{3b-5}{2c}$

$y = \dfrac{ 2c(2a-7)}{6(3b-5)} = \dfrac{c(2a-7)}{9b-15}$

Substituting,

$y = \dfrac{4(2(2)-7)}{9(3)-15} = \dfrac{ -12}{12} = -1$

Answer: -1

Part ii

I'm not sure that one's typed in correctly but I'll solve it as written.

$3-34y + 2a = \dfrac{3b-5}{2c + 1}$

$34y = 3+2a-\dfrac{3b-5}{2c + 1}$

$y = \frac 1 {34}\left(3+2a-\dfrac{3b-5}{2c + 1} \right)$

We're not asked to simplify it so I wont. Substituting,

$y = \frac 1 {34}\left(3+2(2)-\dfrac{3(3)-5}{2(4) + 1} \right) = \frac 1 {34}(7-4/9) = \dfrac{59}{306}$

Answer: 59/306

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3 years ago

Pick the pair of lines that is perpendicular: a. Y = -2/3x + 7 b. Y = 2/3x - 7 c. 4x+ 6y = 12 d. 9x - 6y = 27

Llana [10]

Answer:I think the pair that is perpendicular is

Y=2/3x

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3 years ago

Distribute. 1/2 (8x - 16)

Kitty [74]

Answer:

b. 4x-8

Step-by-step explanation:

1/2 x(8x-16)

= 1/2(8x) - 1/2 (16)

=4x - 8

Hope this helped

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3 years ago

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kogti [31]

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Step-by-step explanation:

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3 years ago