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3 years ago

How do I solve this?

Mathematics

2 answers:

leva [86]3 years ago

7 0

Answer:

1) -2 -6

2) -2 -y

3) -2 -6 + -y

4) -2 -6 -y

Step-by-step explanation:

There is no step by step explanation

aleksandr82 [10.1K]3 years ago

5 0

1) -2 -6
2) -2 -y
3) -2 -6 + -y
4) -2 -6 -y

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Cuantas veces al día la manecilla de la hora de un reloj análogo pasa por un número múltiplo de 3.

Fiesta28 [93]

Pasa 96 veces. Porque cuando en una hora ahí 4 múltiples de 3. Tu coges las 4 vez es I lo multiplica a 24 horas. Así es como yo resulte con el número 96.

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4 years ago

Jane multiplies her number by three and subtracts 2.

katrin [286]

Answer:

Let the number they chose be 'x'.

Result of Jane = $3x -2$

Result of Elliot = $2x+3$

Given that,

The product of their result = 110

$or, (3x-2)(2x+3) = 110\\or, 6x^{2} +9x-4x-6 = 110\\or, 6x^{2} +5x - 6 = 110\\or, 6x^{2} +5x - 6-110 = 0\\\\or, 6x^{2} +5x - 116 = 0\\or, 6x^{2} +29x - 24x - 116 = 0\\or, x (6x +29) -4(6x+29) = 0\\or, (x-4)(6x+29) = 0\\i.e. x=4 or x=\frac{-29}{6} \\So,~ the ~number ~they~ chose~was ~either ~4 ~or ~\frac{-29}{6}$

3 0

3 years ago

Complete for y=x-4. How do I do this pls help

Hitman42 [59]

Answer:

-5 = -9

-2 = -6

0 = -4

4 = 0

Step-by-step explanation:

You substitute each value for x and then solve the equation. (Please give me brainliest)

8 0

3 years ago

Factor Completely: -3x - 9

uranmaximum [27]

Step-by-step explanation:

-3x-9

divide the equation by -1 so that the -1's are taken from -3x and -9. so the -1 goes on the outside of 3x+9

-1(3x+9)

then divide the equation by 3 since 3x and 9 is divisible by 3.

(-1)(3)(3/3x+9/3)

-3(x+3)

Now we can expand again to check the problem

-3 times x=-3x

-3 times 3=-9

and add

-3x-9

Hope that helps :)

7 0

3 years ago

At sunrise, the temperature was -12 °F. The temperature increased 19 °F each hour for 3 hours. What was the temperature 3 hours

yawa3891 [41]

-12 degree F + 19 + 19 + 19 = 49 degree F
I think the answer is 49 degree F...

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3 years ago