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3 years ago

Convert the following equation into standard form.

Mathematics

1 answer:

kicyunya [14]3 years ago

7 0

Answer:

7x+9y=45

Step-by-step explanation:

Standard equations always mean that you have to get x and y on one side so that they equal the coefficient.

Do this by adding the fraction that is combined with x to the other side where y is. The equation should now read $\frac{7}{9} x + y = 5$

Standard form cannot have fractions, so now you must multiply by the denominator (9) on both sides of the equation in order to cancel it out. Don't forget to multiply EACH variable by 9. This leads you to the answer.

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Karl’s math class is playing a number game. Each student is given a number card containing the numbers 1 to 6. The rules of the

Lena [83]

By finding the probability, we can expect that 2 out of the 30 students will win the prize.

<h3>How many of the 30 students will win the prize?</h3>

First, we should get the probability of winning this game.

Here the students select two numbers out of 6, just to make the calculations let's say that these numbers are 1 and 2.

Now, we need to get these two numbers in two balls. The probability of getting the ball with the number 1 out of the 6 balls is:

p = 1/6

The probability of getting the ball with the number 2 out of the remaining 5 balls (because we already got one) is:

q = 1/5

The joint probability is then:

P = 2*(1/6)*(1/5) = 1/15.

Where the factor 2 comes to take in account the permutations, for the case where we first draw the number 2 and then the number 1.

Then the expected number of students that will win is equal to the probability times the total number of students:

(1/15)*30 = 2

So out of the 30 students, we can expect that 2 will win.

If you want to learn more about probability:

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2 years ago

Also explain how you got your answer please

serg [7]

Answer:

Step-by-step explanation:

8 0

3 years ago

What is coordinate geometry

Elina [12.6K]

is the study of algebraic equations on graphs

An example of the coordinate geometry is plotting point,lines and curves on

an x & Y axis thanks

7 0

3 years ago

Please help with this please!

algol13

It is a they need 27 canoes.

8 0

4 years ago

Read 2 more answers

What is the image point of (-4, 8) after a translation right 4 units and up 2 units?

Vitek1552 [10]

Given:

Point = ( -4,8).

To find:

The image point of (-4, 8) after a translation right 4 units and up 2 units.

Solution:

We know that, if a figure translated 4 units right and 2 units up, then the rule of translation is

$(x,y)\to (x+4,y+2)$

The point is (-4,8).

Putting x=-4 and y=8, we get

$(-4,2)\to (-4+4,8+2)$

$(-4,2)\to (0,10)$

Therefore, the image of point (-4,8) is (0,10).

4 0

3 years ago