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2 years ago

Solve for x 3/10 = x/7 Give your answer as an improper fraction in its simplest form!!!!!

Mathematics

2 answers:

julsineya [31]2 years ago

5 0

Answer:

x = 21/10

Step-by-step explanation:

3/10 = x/7

Cross multiply.

10x = 21

x = 21/10

Liono4ka [1.6K]2 years ago

5 0

Answer:

x is 21/10

Step-by-step explanation:

3/10 = x/7

Multiply through by the LCM of 10 and 7 which is 70

we have

3/10 × 70 = x/7 × 70

21 = 10x

Divide both sides by 10

We have

21/10 = 10x /10

x = 21/10

Hope this helps you

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How many tenths are in 3ones

Vinil7 [7]

Answer:

Step-by-step explanation:

Each one has 10 tenths, so 3 ones have 30 tenths.

You can do this by dividing 3 by 1/10.

3/(1/10) = 3/1 * 10/1 = 30/1 = 30

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2 years ago

you take a group of 20 people going to the movies. kids’ tickets cost $4 each, and adults tickets $6 each. your total cost is $9

brilliants [131]

The number of kids in your group is 12.

Step-by-step explanation:

Given,

Number of people = 20

Cost of each kid ticket = $4

Cost of each adult ticket = $6

Total spent = $96

Let,

x be the number of kids ticket

y be the number of adult ticket

According to given statement;

x+y=20 Eqn 1

4x+6y=96 Eqn 2

Multiplying Eqn 1 by 4

$4(x+y=20)\\4x+4y=80\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(4x+6y)-(4x+4y)=96-80\\4x+6y-4x-4y=16\\2y=16$

Dividing both sides by 2

$\frac{2y}{2}=\frac{16}{2}\\y=8$

Putting y=8 in Eqn 1

$x+8=20\\x=20-8\\x=12$

The number of kids in your group is 12.

Keywords: linear equation, elimination method

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2 years ago

The cost of coffee is determined by the type of coffee beans that are mixed together. The cost of a local mix of Arabica and Rob

Yuki888 [10]

250 pounds of Robusta beans.

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2 years ago

Read 2 more answers

What is the sine value of pi over 6?

loris [4]

The value of sin (pi/6) is 1/2

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The medical director of a company looks at the medical records of all 50 employees and finds that the mean systolic blood pressu

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Considering that the value of 126.07 is valid for the population, it is a parameter.

<h3>What is the difference between a statistic and a parameter?</h3>

If the measure is defined only for the sample, it is a statistic.

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More can be learned about parameters and statistics at brainly.com/question/13794992

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1 year ago