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3 years ago

Solve 0.5y+y/3=0.25y+7please answer this question

Mathematics

1 answer:

Hoochie [10]3 years ago

7 0

Answer:

y = 28

Step-by-step explanation:

0.5y + y/ 3 = 0.25y + 7

1.5y / 3 = 0.25y + 7

y/2 = 0.25y + 7

y = ( 0.25y + 7)*2

y = 0.5y + 14

y - 0.5y = 14

0.5y = 14

y = 14/0.5

y = 28

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3 years ago

Y= - 2x + 4 2x + y = 4

Tomtit [17]

Answer:

Infinite amount of solutions

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Step-by-step explanation:

Step 1: Define Systems

y = -2x + 4

2x + y = 4

Step 2: Solve for x

Substitution

Substitute in y: 2x + (-2x + 4) = 4
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Here we see that 4 does indeed equal 4.

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2 years ago

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a class has 60 students.Given that 85% passed a science test. Find the number of students who failed and then convert o %

Vanyuwa [196]

Given:

Total students = 60

Student passed = 85%

To find:

The number of students who failed and then convert it in %.

Solution:

We have,

Number of passed student = 85% of Total students

= $\dfrac{85}{100}\times 60$

= $51$

So, number of passes students is 51.

Number of students who failed = Total students - Passes students

= $60-51$

= $9$

So, number of students who failed is 9.

$\text{Fail}\%=\dfrac{\text{Failed students}}{\text{Total students}}\times 100$

$\text{Fail}\%=\dfrac{9}{60}\times 100$

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Therefore, 15% students fail in the test.

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3 years ago

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Simplify the expression: (6 + 8) + x = 14

Alex787 [66]

Answer:

x=0 is your answer

Step-by-step explanation:

(6 + 8) + x = 14

14+x=14

x=14-14

x=0

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3 years ago

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Solve 0.5y+y/3=0.25y+7​please answer this question

Solve 0.5y+y/3=0.25y+7please answer this question