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3 years ago

11

Walnuts are 5 dollars a pound. Jack brought p pounds of walnuts and paid $25. Translate the following into a mathematical equati

on

1 answer:

Travka [436]3 years ago

8 0

Answer:

7.95 per pound.

Step-by-step explanation:

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Given constants a and b such that x2 + ax + b has factors (x + 7) and (x + 2) what is a?

dezoksy [38]

Answer:

a=9 , b=14

Step-by-step explanation:

Just do the operation (x+7)(x+2)

x(x)+x(2)+7(x)+7(2)

x^2+2x+7x+14

x^2+9x+14

So a=9 and b=14

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2 years ago

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Step-by-step explanation:

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2 years ago

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Find the equation is standard form, of the line passing through he points (2,-3) and (4,2)

Simora [160]

The point slope formula:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

$(2,\ -3)\to x_1=2,\ y_1=-3\\(4,\ 2)\to x_2=4,\ y_2=2$

Substitute:

$m=\dfrac{2-(-3)}{4-2}=\dfrac{5}{2}=2.5\\\\y-(-3)=2.5(x-2)\\\\y+3=2.5x-5\ \ \ \ |+5\\\\y+8=2.5x\ \ \ \ \ \ |-y\\\\2.5x-y=8\ \ \ \ \ |\cdot2\\\\\boxed{5x-2y=16}$

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3 years ago

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masya89 [10]

Because of the area

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2 years ago

4/15x equals 2/5<br> solve for x

irina [24]

Answer:

$1\frac{1}{2} = x$

Step-by-step explanation:

$\frac{\frac{2}{5}}{\frac{4}{15}} = \frac{2}{5} \times \frac{15}{4} = \frac{30}{20} = 1\frac{1}{2}$

I am joyous to assist you anytime.

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3 years ago