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3 years ago

How do I do this? My teacher makes these problems very confusing...

Mathematics

1 answer:

prohojiy [21]3 years ago

8 0

You substitute the equation and see if it works. Also, the first one that you answered is wrong.

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A bag contains 2 red marbles, 7 blue marbles and 5 green marbles. If two marbles are drawn out of the bag, what is the exact pro

vivado [14]

Answer:

0.25 or 25%.

Step-by-step explanation:

2 Red + 3 Blue + 7 Green = 12 Total Marbles.

You have 3 blue marbles out of the total marbles, so 3/12, then simplify it. 3/12 = 1/4. This gives you 0.25, or 25%.

The probability of drawing a blue marble is 0.25 or 25%

4 0

2 years ago

Please help me I don't know how to do this

zhenek [66]

It is 9 squares. Todayyyyy

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3 years ago

Read 2 more answers

What are the next three terms in the sequence? -3, 6, 15, 24

bearhunter [10]

Its adding 9 every time.
-3, 6, 15, 24, 33, 42, 51, 60

7 0

2 years ago

PLEASE ANSWERRRRRRRRRR

mash [69]

Answer: OPTION B.

Step-by-step explanation:

Given the following System of equations:

$\left \{ {{3x-5y=19} \atop {x+y=1}} \right.$

You can use the Elimination Method to solve it. The steps are:

1. You can mutliply the second equation by -3.

2. Then you must add the equations.

3. Solve for the variable "y".

Then:

$\left \{ {{3x-5y=19} \atop {-3x-3y=-3}} \right.\\.....................\\-8y=16\\\\y=\frac{16}{-8}\\\\y=-2$

4. Now that you know the value of the variable "y", you must substitute it into any original equation.

5. The final step is to solve for "x" in order to find its value.

Then:

$x+(-2)=1\\\\x=1+2\\\\x=3$

Therefore, the solution is:

$(3,-2)$

8 0

3 years ago

Write the following fractions in order from smallest to largest 3/10, 13/20, 22/25, 3/5

iren2701 [21]

Your answer from smallest to largest is:

3/10
3/5
13/20
22/25

6 0

3 years ago