PLEASE HELP ASAP ILL GIVE BRAINLIEST

Mathematics

1 answer:

ad-work [718]2 years ago

5 0

Answer: Serenity made more money.

Step-by-step explanation: She got 40$ in tips- AND she gets 5$ per hour. Four hours went by, (6-10pm) so she gets an additional 20$ dollars, making her the one with more money because Jean made 40$.

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Simplify: (-2)(-3)+(4)(-8)<br><br>Simplify: (3)(-6)-18

koban [17]

Answer:

Step-by-step explanation:

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2 years ago

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12 stamps increased by 125% what is the new amount

GREYUIT [131]

12 x 1.25 = 15

15 is the new amount

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2 years ago

Factor 7(x − 3)2 − 4(x − 3) − 3 completely.

Nezavi [6.7K]

$7(x-3)^2-4(x-3)-3\\\\substitute\ t=x-3,\ then\ we\ have\\\\7t^2-4t-3\\\\a=7;\ b=-4;\ c=-3\\\\\Delta=b^2-4ac\\\\\Delta=(-4)^2-4\cdot7\cdot(-3)=16+84=100\\\\t_1=\dfrac{-b-\sqrt\Delta}{2a};\ t_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\\sqrt\Delta=\sqrt{100}=10\\\\t_1=\dfrac{-(-4)-10}{2\cdot7}=\dfrac{4-10}{14}=\dfrac{-6}{14}=-\dfrac{3}{7}\\\\t_2=\dfrac{-(-4)+10}{2\cdot7}=\dfrac{4+10}{14}=\dfrac{14}{14}=1\\\\7t^2-4t-3=7\left(t+\dfrac{3}{7}\right)(t-1)=(7t+3)(t-1)\\\\=(7(x-3)+3)(x-3-1)=(7x-21+3)(x-4)\\\\=\boxed{(7x-18)(x-4)}$

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3 years ago

Two integers a and b have a product of 24.what is the least possible sum of a and b

OverLord2011 [107]

A x b = 24

Possible values of a and b are:
1 x 24 = 24
2 x 12 = 24
3 x 8 =24
4 x 6 = 24

The possible sums of a and b are:
1 + 24 = 25
2 + 12 = 14
3 + 8 = 11
4 + 6 = 10

Therefore, the least possible sum of a and b is 10.

8 0

3 years ago

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xeze [42]

2/3 = x/(3x + y)

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6x - 3x = - 2y

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x/y = -2/3

x : y = -2/3.

5 0

2 years ago