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mamaluj [8]
3 years ago
5

Solve the system of equations -30 + 7y = -18 and 4x – 4y = 8 by combining the equations.

Mathematics
1 answer:
mariarad [96]3 years ago
6 0
The answer is (4/23,-42/23).
good luck!
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Find the number of possible outcomes in the sample space. The chess club must decide when and where to meet for a practice. The
Lesechka [4]

Solution

- The number of possible outcomes in the sample space is simply gotten by multiplying out all the events together.

- There are 3 possible days: Tuesday, Wednesday, or Thursday. Thus, there are 3 possible outcomes.

- There are 3 possible times: 3PM, 4PM, or 5PM. Thus, there are 3 possible outcomes again.

- There are also 9 possible classrooms available meaning another 9 possible outcomes.

- Thus, the total possible outcomes in the sample space is

3\times3\times9=81\text{ possible outcomes}

4 0
1 year ago
Help plz :((<br> I'll give brainliest
AleksAgata [21]
A) condensation
B) the air around the glass of ice water is cooled. Moisture in the air condenses out once the temperature of the air reaches below the dew point.
C) evaporation
D) as the water is left out the warm temperatures allows the water to evaporate over time.
8 0
3 years ago
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What is the equivalent percent fraction for 1/2 3/4 7/10 3/20 4/25 9/50 1/8
ohaa [14]

Answer:1/2=0.5

3/4=0.75

7/10=0.7

3/20=0.15

4/25=0.16

9/50=0.18

1/8=0.125

Step-by-step explanation:

1/2=0.5

3/4=0.75

7/10=0.7

3/20=0.15

4/25=0.16

9/50=0.18

1/8=0.125

4 0
3 years ago
Special right triangles, find x and y
egoroff_w [7]

Answer:

The answer to your question is x = 17.32; y = 8.67

Step-by-step explanation:

Process

1.- Use trigonometric functions to find x and y

   a) sin Ф = \frac{opposite side}{hypotenuse}

      Ф = 60°

      opposite side = 15

      hypotenuse = ?

     hypotenuse = \frac{opposite side}{sin \alpha }

     hypotenuse = \frac{15}{sin 60}

     hypotenuse = \frac{15}{0.87}

            hypotenuse = 17.32

     b) cosФ = \frac{y}{hypotenuse}

         y = hypotenuse x cos 60

         y = 17.32 x 0.5

                y = 8.67

5 0
3 years ago
The distance from the Earth to Saturn averages 886 million (886,000,000) miles. Write this number in scientific notation.
kiruha [24]

Answer:

8.86 x 10^8

Step-by-step explanation:

Scientific notation means that you represent the standard form of a number like this:

number less than ten x 10 to the ___ power

In standard form, the decimal point is at the end of 886,000,000.

You have to move the decimal point to the left until it creates a number less than 10, but greater than 1:

8.86,000,000

You count how many decimal places you moved it. In this case, it is 8.

So your answer becomes 8.86 x 10^8

7 0
3 years ago
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