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2 years ago

5

List the set or sets to which each number belongs

2 answers:

uysha [10]2 years ago

8 0

You need to post a picture man

Aneli [31]2 years ago

6 0

Ummmmm.......you didn’t post a pic my guy

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A student ID number is a letter of the alphabet followed by 2 digits. How many different IDs are possible if the digits can be r

mars1129 [50]

First, there are 26 distinct alphabets and 10 distinct digit numbers.

Then, the first digit of ID has 26 possibilities.

For the rest of 2 digits, the total cases are 10*10 = 100 possibilities.

However, there are 10 cases are repeated when two digits are the same. so you have to subtract it by 10

So answer will be 26 * (100-10) = 23400

4 0

2 years ago

The amount a car dealership earns for selling a car is directly proportional to the price of the car. The table shows this relat

Travka [436]

I think its 2 because if you divide 20,000 over 1000 you get 2. If you do that for the other values, you would also get 2.

3 0

3 years ago

Please help!!! I don’t understand

Allushta [10]

Answer:

first you would add 5 on both sides

then you should have 15y = 28

then you will divide 15 by 15

then do the same to 28

Step-by-step explanation:

4 0

3 years ago

Choose the equations which have a greater rate of change than the graph.

NemiM [27]

Option C: $y=\frac{3}{10} x$ is the equation that have a greater rate of change.

Explanation:

From the graph the coordinates are (0,0), (20,6), (40,12), (60,18) and (100,30)

We need to determine the rate of change.

The rate of change can be determined using the formula,

$m=\frac{y_2-y_1}{x_2-x_1}$

Substituting the any two coordinates in the formula, we get, the slope of the equation.

Let us substitute the coordinates (20,6) and (100,30)

Thus, we have,

$m=\frac{30-6}{100-20}$

Simplifying, we get,

$m=\frac{24}{80}$

Dividing, we get,

$m=\frac{3}{10}$

Also, the y - intercept of the equation is $b=0$

The equation of the line becomes $y=\frac{3}{10} x$

Thus, the equation that has a greater rate of change is $y=\frac{3}{10} x$

Hence, Option C is the correct answer.

4 0

3 years ago

Solve the system of equations by using the substitution method.<br><br> 3x - 5y = 17<br> y=x-5

Karolina [17]

Answer:

x= 4, y= -1

Step-by-step explanation:

3x -5y= 17 -----(1)

y= x -5 -----(2)

Substitute (2) into (1):

3x -5(x -5)= 17

Expand:

3x -5x +25= 17

-2x= 17 -25

-2x= -8

x= -8 ÷(-2)

x= 4

Substitute x= 4 into (2):

y= 4 -5

y= -1

7 0

2 years ago

Read 2 more answers