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marusya05 [52]
2 years ago
9

What is the value of x and y?

Mathematics
2 answers:
Pavel [41]2 years ago
6 0

Answer:

x=\boxed{2}

y=\boxed{4}

Step-by-step explanation:

\begin{cases} y= 6x-8... (1)\\\\y=-3x+10...(2)\end{cases}

From equations (1) & (2), we find:

6x - 8 = - 3x +10

\therefore 6x+3x = 8+10

\therefore 9x = 18

\therefore x =\frac{18}{9}

\therefore x = 2

Plug x = 2 in equation (1)

y = 6(2)-8 = 12-8 =4

So,

x=\boxed{2}

y=\boxed{4}

hichkok12 [17]2 years ago
6 0

Answer:9X

y10

Step-by-step explanation:

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Suppose j varies jointly with g and v, j=1 when g=6 and v=3. Find j when g=8 and v=11
Lady bird [3.3K]

j=4.88 when g=8 and v=11

Further explanation:

When the increase/decrease in one quantity cause increase/decrease in other quantity, it is called direct variation.

Variation is always accompanied by a variation constant.

<u>Given</u>

g and v vary directly with j

IT can be written as:

j∝gv

Putting the variation constant k

j = kgv

Putting g = 6 and v=3

j = kgv\\1 = k * 6 * 3\\1 = 18k\\k = \frac{1}{18}

So the value of k is 1/18 which makes the equation

j = \frac{1}{18}gv\\ Putting\ g=8\ and\ v=11\\j = \frac{1}{18} * 8 * 11\\j = \frac{88}{18}\\ j =4.88

So, j=4.88 when g=8 and v=11

Keywords: Variation, Direct Variation

Learn more about variation at:

  • brainly.com/question/11258952
  • brainly.com/question/1284310

#LearnwithBrainly

8 0
3 years ago
is the following example true or false? if false give a counterexample. The sum of two rational numbers is always rational the s
Lina20 [59]

Answer:

two irrational numbers is always irrational

Step-by-step explanation:

7 0
3 years ago
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hank wants to divide 345 pieces of construction paper evenly among his 23 classmates. how many pieces will be left over
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7 0
3 years ago
Albertson's found that the demand for Coke products varies inversely as the price of the product. When the price of a Coke produ
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Answer:

859

Step-by-step explanation:

The demand for Coke products varies inversely as the price of Cole products.

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Where k = constant of proportionality.

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When Demand, D, is 1250, price, p, is $2.75:

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k = $3437.5

Now, when price, p, is $4, the demand will be:

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The demand for the product is 859 when the price is $4.

8 0
3 years ago
Which of the scatterplots to the right show ​a) no​ association? ​b) a negative​ association? ​c) a linear​ association? ​d) a w
Len [333]

Answer:

A scatter plot to the right shows  a very strong​ association.

Step-by-step explanation:

Because  a scatter plot to the right shows that both variables are positive and they both increase, so it shows a strong association between those variables.

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