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3 years ago

How many solutions does 9(z+8)=-9z-72 have

Mathematics

1 answer:

zloy xaker [14]3 years ago

4 0

Answer:

1 solution.

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Step-by-step explanation:

Step 1: Define equation

9(z + 8) = -9z - 72

Step 2: Solve for x

Distribute 9: 9x + 72 = -9z - 72
Add 9z to both sides: 18z + 72 = -72
Subtract 72 on both sides: 18z = -144
Divide 18 on both sides: z = -8

Here we see that we will get only 1 solution for z.

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Answer:

Step-by-step explanation:

m = (4×8) ÷ 4

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3 years ago

An office supply store recently sold a black printer ink cartridge for $17.99 and a color printer ink cartridge for $20.99. At t

UNO [17]

Answer:

40 black ink cartridges and 19 colored ink cartridges

Step-by-step explanation:

Let $b$ represent the number of black printer ink cartridges sold. Let $c$ represent the number of color printer ink cartridges sold.

Set up a system of equations:

$\displaystyle\\\begin{cases}b+c=59\\17.99b+20.99c=1,118.41\end{cases}$

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2 years ago

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Luden [163]

Answer:

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Step-by-step explanation:

Its because you are just multiplying the number on the outside with the numbers or variables in the parenthesis.

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3 years ago

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3 years ago

Read this E[2X^2 â€" Y].

djyliett [7]

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Otherwise, you may be given the density function, or joint density, in which case you can determine the expectations by computing an integral or sum.

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3 years ago