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3 years ago

6

Can Someone Please Help With my homework

1 answer:

Arada [10]3 years ago

5 0

Answer:

10

Step-by-step explanation:

She already has 75 points. 140-75 is 65. 65/6.5 is 10.

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Answer:

65.12 mm

Step-by-step explanation:

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Perimeter = (40 + 8π) = 65.12 mm

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3 years ago

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A chemist is mixing one solution that is 32% sodium and another solution that is 12% sodium how many liters of each type should

Brut [27]

In order to solve the amount of each solution, we need to set up equations. We do as follows:

Let x = solution with 32% sodium
y = solution with 12% sodium

Overall balance
x + y = 50

Component balance
.32x + .12y = 50(.20) =10

Solving simultaneously,

x = 20
y = 30

Hope this answers the question. Have a nice day.

6 0

3 years ago

Math question plz help me

Minchanka [31]

Answer:

The required equation of the line is:

$y=\frac{1}{4}x-1$

Step-by-step explanation:

Given the equation

$y=-4x+3$

comparing the equation with the slope-intercept form

$y=mx+b$

Here,

m is the slope

y is the intercept

so the slope of the line is -4.

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so

The slope of the perpendicular line will be: 1/4

Therefore, the point-slope form of the equation of the perpendicular line that also intersects the point (8, 1) is:

$y-y_1=m\left(x-x_1\right)$

$y-1=\frac{1}{4}\left(x-8\right)$

add 1 to both sides

$y-1+1=\frac{1}{4}\left(x-8\right)+1$

$y=\frac{1}{4}x-1$

8 0

3 years ago