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boyakko [2]
3 years ago
10

A survey of 120 teachers determined the following:

Mathematics
1 answer:
son4ous [18]3 years ago
3 0

Answer:

0%

Step-by-step explanation:

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Solve the following systems of equations without graphing <br> 5x + 10y = 30<br> -5x +15y = 20
galben [10]

Answer:

(2, 2)

Step-by-step explanation:

In this case, elimination would be the most efficient means of solving.

Simply, add the two equations, and you will be left with only one variable to solve for. (In this case y) You are then able to take your solution and plug it into an equation and solve for x, therefore giving you their intercept.\

5x + 10y = 30

+

-5x + 15y = 20

(x's cancel) 25y = 50

25y = 50

y = 2

5x + 10(2) = 30

5x + 20 = 30

5x = 10

x = 2

The solution to this equation is (2, 2)

8 0
2 years ago
Which of the following numbers can be expressed as a decimal that terminates?
viktelen [127]
3/2- 1.5 and 3/4- .75
7 0
3 years ago
Analyze ady Porter is buying t ride tickets at the county fair. He receives 3 tickets for every dollar, d, that he spends. Which
Vanyuwa [196]

Answer:

The answer is below

Step-by-step explanation:

An independent variable is a variable that does not dependent on other variables. It is the input variable.

A dependent variable is a variable that is dependent on other variables. The dependent variable depends on the independent variable. It is the output variable.

Since porter receives 3 tickets for every dollar, this means the number of ticket is dependent on the money he spend. Therefore the money he spends (d) is the independent variable and the tickets (t) is the dependent variable.

4 0
2 years ago
The radius of Venus is 3,760.4 miles. What is the approximate volume of Venus?
sdas [7]
The radius of a sphere is calculated through the equation,
                             V = 4πr³ / 3
where r is the radius. Substituting the radius given in the equation,
                            V = 4π x (3,760.4 miles)³ / 3 = 2.23 x 10^11 miles
Thus, the volume of the planet Venus is calculated to be 2.23 x 10^11 miles, approximately. 
8 0
3 years ago
Abebe is 12 years old and his sister Aster is 2 years old. In how many
Nonamiya [84]

Answer:

Abebe will be exact twice as old as Aster in 8 years.

Step-by-step explanation:

Since Abebe is 12 years old, and his sister Aster is 2 years old, there is a difference of 10 years between them (12 - 2). Therefore, the difference between the two implies that Abebe is exactly twice as old as her sister when she is 10 years old, and she is 20 years old (10 x 2 = 20).

Therefore, since 20-12 equals 8, Abebe will be twice as old as her sister Aster hers in 8 years.

6 0
3 years ago
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