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3 years ago

I need help with this please help the last one is 20 for 4.20

Mathematics

1 answer:

Anuta_ua [19.1K]3 years ago

5 0

Hello!

The word "per" means to divide. Therefore we will divide our price by ounces to find how much one ounce costs.

.42/2=.21

It costs $0.21 per ounce.

I hope this helps!

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Which equations are equivalent to -1/4(x)+3/4=12? Select all that apply.

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Answer:

Step-by-step explanation:

-1/4 times x is the same as -4 time x over 1 because you multiply the numerator by a whole number and the denominator by 1

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2 years ago

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The area of a rectangle is 27 square feet. The length is 6 feet longer than the width.

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Answer:

The length of the rectangle is 9 ft.

Step-by-step explanation:

9 - 6 = 3 So 3 is the width, and 3 x 9 = 27

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Identify an equation in point-slope form for the line perpendicular to

Alchen [17]

Answer:

$y - 9 = \frac{1}{2}(x +3)$

Step-by-step explanation:

Given

Function; $y = -2x + 8$

Required

Find an equation perpendicular to the given function if it passes through (-3,9)

First, we need to determine the slope of: $y = -2x + 8$

The slope intercept of an equation is in form;

$y = mx + b$

Where m represent the slope

Comparing $y = m_1x + b$ to $y = -2x + 8$ ;

We'll have that

$m_1 = -2$

Going from there; we need to calculate the slope of the parallel line

The condition for parallel line is;

$m_1 * m_2 = -1$

Substitute $m_1 = -2$

$(-2) * m_2 = -1$

Divide both sides by -2

$m_2 =\frac{ -1}{-2}$

$m_2 =\frac{1}{2}$

The point slope form of a line is;

$y - y_1 = m_2(x - x_1)$

Where $(x_1,y_1) = (-3,9)$ and $m_2 =\frac{1}{2}$

$y - y_1 = m_2(x - x_1)$ becomes

$y - 9 = \frac{1}{2}(x - (-3))$

Open the inner bracket

$y - 9 = \frac{1}{2}(x +3)$

Hence, the point slope form of the perpendicular line is: 

 $y - 9 = \frac{1}{2}(x +3)$ 

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3 years ago

Greg has a bag that contains 25 colored tiles. Of all the tiles in this bag, 10 are blue. Suppose another bag contains 250 colo

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Answer:

he is less likely to pick a blue tile in the second bag

Step-by-step explanation:

divide 10 by 25 which will give you 40%

divide 75 by 250 which will give you 30%

this makes it less likely for Greg to pick blue from the second bag, as the first bag has a higher percentage chance

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3 years ago

I really really really need help with this

e-lub [12.9K]

Answer:

404

Step-by-step explanation:

Simplify = 8 + 30 x 13 + 6

Left to right = 8 + 390 + 6

Result = 404

Leave a brainliest if this helped.

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2 years ago

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