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katovenus [111]
3 years ago
5

9 divided by blank equals 5/9 what is the blank?

Mathematics
1 answer:
My name is Ann [436]3 years ago
5 0

Answer:

16.2

Step-by-step explanation:

Let x be the blank.

Therefore, \frac{9}{x} = \frac{5}{9}

By cross-multiplying 9 by 9 and x by 5, we get

5x = 81

Therefore,

x = \frac{81}{5} = 16.2

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You earn $28 for washing 7 cars. How much do you earn for washing 6 cars?
iren [92.7K]

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  

Since you can earn 28 dollars by washing 7 cars, and you want to find the amount money you can make by washing 6 cars.

\frac{28}{7} = \frac{x}{6}

First, you should find the amount of money you can make by washing 1 car (unit rate).

\frac{28}{7} = \frac{x}{1}

To get from 7 to 1, you have to divide 7 by 7; 7 ÷ 7 = 1.

Do the same thing to the numerator; 28 ÷ 7 = 4.

Now you know how much you make by washing 1 car, you need to find how much you make by washing 6 cars.

\frac{4}{1} = \frac{x}{6}

To get from 1 to 6, you multiply by 6. 1 times 6 equals 6.

Now do the same thing to the numerator; 4 × 6 = 24.

You can earn 24 dollars by washing 6 cars.

━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━  

5 0
3 years ago
In 2012, there were approximately 85,440 songs released all year. Approximately how many songs were released per month?
puteri [66]

Answer:

7120

Step-by-step explanation:

Simple Division

8 0
3 years ago
help quick! if BC is parallel to DE, then all of the following are equivalent to each other except...
Alecsey [184]
Answer is letter c. (CE/AC)
8 0
3 years ago
Read 2 more answers
Suppose we want to assess the effect of a one-day SAT prep class at a 5% level of significance. Scores on the SAT writing exam c
aalyn [17]

The conclusion is that since the value of 0.028 is less than 0.05 so we reject the null hypothesis at 5% level of significance and conclude that the mean of the difference in SAT writing scores for all students who take SAT prep class is equal to 0.

<h3>What is a null hypothesis?</h3>

A null hypothesis is a hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling error.

Here, the effect of a one-day SAT prep class at a 5% level of significance was assessed.  Since the value of 0.028 is less than 0.05 so we reject the null hypothesis at 5% level of significance and conclude that the mean of the difference in SAT writing scores for all students who take SAT prep class is equal to 0.

Learn more about hypothesis on:

brainly.com/question/11555274

#SPJ1

8 0
2 years ago
HELP 20POINTS WILLMARKBRAINLIEST!!
erastovalidia [21]

Answer:

2412

Step-by-step explanation:12*12*13=1872 15*12*3=540 1872+540=2412

7 0
3 years ago
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