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slega [8]
3 years ago
11

4x/5-x=x/10-9/2 what is x

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
8 0

Step-by-step explanation:

4x/5-×=×-45/10(find lcm)

cross multiply

4x(10)=5-×(×-45)

40x=5-ײ+45×

40x-45×=5-ײ

-5×=5-ײ

x=5-ײ/-5

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Cesar turned in his third research report, his teacher said that he had completed 20%of the reports for the school year, how man
AleksAgata [21]

Answer:

Cesar will be doing  15 research reports during the school year.

Step-by-step explanation:

Given:

Number of research report completed = 3

Percentage of the report completed for school year = 20%

We need to find total number of research report completed during school year.

Solution:

Let the total number of research report completed during school year be 'x'.

Now we can say that;

Number of research report completed is equal to Percentage of the report completed for school year multiplied by total number of research report completed during school year and then divided by 100.

framing in equation form we get;

3=\frac{20}{100}\times x\\\\3=0.2x

Dividing both side by 0.2 we get;

\frac{3}{0.2}=\frac{0.2x}{0.2}\\\\x=15

Hence Cesar will be doing  15 research reports during the school year.

6 0
2 years ago
The population of bobcats in northern Arizona since 2008 can be modeled using the function b(t) = –0.32t2 + 2.7t + 253. What doe
Vesna [10]

Answer:

See below.

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6 0
3 years ago
What is the value of 16- a when a = 9​
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5 0
2 years ago
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6 0
3 years ago
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Which is the graph of the function f(x)= negative square root x
Vsevolod [243]
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6 0
3 years ago
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