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3 years ago

Which of the following is another way to express the equation 16 = -9 + z?

1 answer:

4 0

Since you didn't give the options, we'll answer In steps and you can pick which step you have as an answer choice...

16 = -9 + z

Add 9 to each side for

16 + 9 = z (that's one option)

Add like terms for

25 = z (there's another)

You could also go a whole different route and take the original equation

16 = -9 + z

subtract z from each side for

16 - z = -9

Any of those would be another way to express the equation.

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A bookstore costs $90 a day to keep open, and spends $12 for each book it sells. the store charges $18 for each book it sells. I

denpristay [2]

Total Cost in a day is $TC= 90 + 12n$ . Profit function is $P=18n$ . And the revenue function is $R = P-TC = 18n-12n-90 = 6n-90$ . In a day, bookstore must sell at least 15 books, because of 6n-90=0, in order to make profit.

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4 years ago

Read 2 more answers

Will give brainliest if done properly

k0ka [10]

Answer:

$\sf \boxed{ \sf y - 3 = \dfrac{3}{2} (x - 6)}$

Explanation:

$\sf Given \ equation: y = \dfrac{3}{2} x - 5$

Comparing it with slope intercept form "y = mx + b" where 'm' is slope and 'b' is y-intercept.

Here slope: 3/2 and y-intercept: -5

Parallel slope has the same tangent slope.

Pass through point (x, y) = (6, 3)

Equation:

$\sf y - y_1 = m(x - x_1)$

$\rightarrow \sf y - 3 = \dfrac{3}{2} (x - 6)$

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2 years ago

A student concluded that the inequality -3+2y<4x is equivalent to the inequality y>2x+3/2, as shown below. Describe and co

svlad2 [7]

Step-by-step explanation:

-3+2y<4x

then

2y< 4x+ 3 (add both sides with 3)

y < 2x +3/2 ( divide both sides by 2 that is positif and we do not change the sens < )

Hope you understand.

4 0

3 years ago

What is the y-value when x equals -12.

Gala2k [10]

Answer:

-128 it’s on the table

Step-by-step explanation:

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3 years ago

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Active ingredient of a pill comprises 45% of the pill mass. If a pill contains 325 mg of active ingredient,

uranmaximum [27]

Answer:

Step-by-step explanation:

The idea here is to be able to write and then solve the equation needed for this. In words, this is what you are looking to solve: "The active ingredinet is 45% of the mass of the pill". Putting those words into an equation:

active ingredient = .45 (mass of pill). Since our active ingredient is 35 mg:

325 = .45m and divide by .45:

m = 722.2 mg

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3 years ago