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Alexxandr [17]
3 years ago
15

In a certain​ chemical, the ratio of zinc to copper is 3 to 11. A jar of the chemical contains 462 grams of copper. How many gra

ms of zinc does it​ contain?
Mathematics
1 answer:
Marina86 [1]3 years ago
8 0

Divide 462 by 11 ,and

multiply the answer by 3

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2. If a car is traveling 62 miles per hour, at how many feet per second is it traveling?
BaLLatris [955]

Answer:

88 feet. Please mark me brainliest I really need it

Step-by-step explanation:

8 0
2 years ago
A subway car 34 feet long; 1 inch = 5 feet
ZanzabumX [31]

Answer:

6.8 inches

Step-by-step explanation:

<u>inch</u><u>=</u><u> </u><u>1</u><u> </u><u> </u><u> </u><u>x</u>

feet= 5 34

1×34÷5

8 0
3 years ago
Find the mean (average) of the data set below? 2/4, 18/5, 28/10, 5/20
laila [671]

the mean (average) of the data set below

2/4, 18/5, 28/10, 5/20

We are given with 4 fraction

to find mean , we add all the fractions and divide by 4

Lets add all the fractions

\frac{2}{4} + \frac{18}{5} + \frac{28}{10} + \frac{5}{20}

Make the denominators same

LCM is 20

Try to get 20 in the denominator

\frac{2*5}{4*5} + \frac{18*4}{5*4} + \frac{28*2}{10*2} + \frac{5}{20}

\frac{10}{20} + \frac{72}{20} + \frac{56}{20} + \frac{5}{20}

\frac{143}{20}

Now we divide by 4

\frac{\frac{143}{20}}{4}=\frac{143}{80}=1\frac{63}{80}


6 0
2 years ago
Which of the following demonstrates the correct first step in copying a segment?
olganol [36]

Answer: option A

Step-by-step explanation:

Create another line that intersects the segment

please click thanks and mark brainliest if you like :)

8 0
3 years ago
During the 2019 regular season, the Washington Nationals professional baseball team won 93 games and lost 69 games. What percent
mote1985 [20]

The percentage of its games that the team won is 57.4%

Step-by-step explanation:

The percentage of an Event = (Number of favorable outcomes / Total

number of possible outcomes) × 100%

During the 2019 regular season, the Washington Nationals professional

baseball team won 93 games and lost 69 games

We need to find the percentage of its games that the team won

1. Find the total number of games

2. To find the percentage of win, divide the number of the won games

    by the total number of games and multiply the quotient by 100%

3. To find the percentage of lose, divide the number of the lost games

    by the total number of games and multiply the quotient by 100%

∵ The team won 93 games

∵ The team lost 69 games

∴ The total number of games = 93 + 69 = 162 games

∵ P(won) = [n(won)/n(all)] × 100%

∵ n(won) = 93

∵ n(all) = 162

∴ P(won) = \frac{93}{162} × 100%

∴ P(won) = 57.4%

The percentage of its games that the team won is 57.4%

Learn more:

You can learn more about percentage in brainly.com/question/12960754

#LearnwithBrainly

8 0
3 years ago
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