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never [62]
2 years ago
6

In a certain​ chemical, the ratio of zinc to copper is 3 to 13. A jar of the chemical contains 299 grams of copper. How many gra

ms of zinc does it​ contain?In a certain​ chemical, the ratio of zinc to copper is 3 to 13. A jar of the chemical contains 299 grams of copper. How many grams of zinc does it​ contain?
Mathematics
1 answer:
sweet [91]2 years ago
6 0

Answer:

69 grams

Step-by-step explanation:

In a certain​ chemical, the ratio of zinc to copper is 3 to 13. A jar of the chemical contains 299 grams of copper. How many grams of zinc does it​ contain?

From the question, we know:

Zinc : Copper

3 : 13

We are told that : A jar of the chemical contains 299 grams of copper.

The grams of zinc it contains is:

3/13 = x/299

Cross Multiply

13 x = 3 × 299

x = 3 × 299/13

x = 897/13

x = 69 grams

It contained 69 grams of zinc

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Jasmine runs 13kilometers and 76 minutes. how long woukd it take to run 1 kilometers​
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Alisiya [41]

Answer:

$25

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
For what value of x is the rational expression below undefined x-4/3x2-75
abruzzese [7]

The given expression is undefined when x = 5 OR x = -5

<h3>Undefined expression </h3>

From the question, we are to determine the value of x for which the given expression is undefined

The given expression is

x-4/3x²-75

An expression is undefined when the denominator equals zero

Thus, the expression is undefined when

3x² - 75 = 0

Now, we will determine the values of x in the equation above

3x² - 75 = 0

3x²  = 75

x² = 75/3

x² = 25

x = ±√25

x = ±5

Hence, the given expression is undefined when x = 5 OR x = -5

Learn more on Undefined expression here: brainly.com/question/19815575

#SPJ1

7 0
2 years ago
Please help me! study island
ANEK [815]

Answer:

B. 5/6

Step-by-step explanation:

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Hope this helps :)

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3 years ago
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