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3 years ago

67a(t+z)=45z+67 solve for (z)

Mathematics

1 answer:

lora16 [44]3 years ago

3 0

Answer: z = $\frac{67(1 - at)}{67a - 45}$

<u>Step-by-step explanation:</u>

67a(t + z) = 45z + 67

67at + 67az = 45z + 67

67az - 45z = 67 - 67at

z(67a - 45) = 67 - 67at

z = $\frac{67 - 67at}{67a - 45}$

= $\frac{67(1 - at)}{67a - 45}$

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Answer:

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Step-by-step explanation:

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So we have.

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<h3>What is algebra?</h3>

One of the many branches of mathematics is algebra. Algebra, which is a common thread throughout practically all of mathematics, is broadly defined as the study of mathematical symbols and the rules for manipulating these symbols in formulas.

<h3>According to the information :</h3>

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brainly.com/question/14083225

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I understand that the question you are looking for is:

In Mrs. Marsh's algebra class, 30 of the 36 students took the Chapter 4 test, and their mean score was $72 \%$. The next day the other six students took the test and their mean score was $78 \%$. What is the new class mean? Express your answer as a percent.

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