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Monica [59]
4 years ago
9

A cyclist rode at a speed of 21 mph

Mathematics
1 answer:
mario62 [17]4 years ago
4 0

Answer:131

Step-by-step explanation:

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Trevor solved the system of equations below. What mistake did he make in his work?
wariber [46]

2x + y = 5

x − 2y = 10

y = 5 − 2x

x − 2(5 − 2x) = 10

x − 10 + 4x = 10

5x − 10 = 10

<em>add 10 to each side</em>

<em>5x-10+10 = 10 + 10</em>

<em>5x=20</em>

5x = 0    <em>this is the error</em>

He needs to add 10 to each side

7 0
3 years ago
Helppp lol<br><br>which system of linear equations is represented by the graph?​
kondaur [170]

Answer:

<em>y ≥ x - 2, and x + 2y < 4 ; Option C</em>

Step-by-step explanation:

Consider the y - intercept and slope of 1 of these given lines,

y - intercept = ( 0, - 2 ) / - 2\\slope = 1 / 1 = 1

From this we can formulate the equation of 1 line;

Take Equation In the Form - y = ax + b, a - slope, and , b - y intercept,\\y = ax + b, a = 1, b = - 2,\\Equation of Line 1 - y = x - 2

Now consider the y - intercept and slope of the remaining line;

y - intercept = ( 0,  2 ) / 2\\slope = 1 /  - 2 = - \frac{ 1 }{ 2 }

This creates a line with the equation as such;

Take Equation In the Form - y = ax + b, a - slope, and , b - y intercept,\\y = ax + b, a = - 1 / 2, b = 2,\\Equation of Line 1 - y = - \frac{ 1 }{ 2 } x + 2, x + 2y = 4

From this we see that the solution of the system is such;

<em>Solution ; y ≥ x - 2, and x + 2y < 4 ; Option C</em>

6 0
4 years ago
Consider a political discussion group consisting of 6 ​Democrats, 6 ​Republicans, and 4 Independents. Suppose that two group mem
kolezko [41]

Answer:

10/16=5/8

6+6+4=16

The probability is 5/8

6 0
3 years ago
Find the measure of angle c
victus00 [196]

Answer:

add 7+5 and 3+9 and then subtract both answers together and the answer you get should be the answer if the degree

6 0
3 years ago
Read 2 more answers
Show work to please..
BlackZzzverrR [31]
One side of the cottage would be 294ft^2. However, it wants both sides of the cottage so the actual answer is
a. 588 ft^2.
3 0
3 years ago
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