Answer:
45
Step-by-step explanation:
A number consists of 2 digits whose sum is 9 => x + y = 9
If the order of the numbers is inverted, the result is equal to the given number plus 9 units => (10*y + x) + 9 = (10*x + y)
Thus:
x + y = 9 => multiply by -9 => 9*y + 9*x = 81
10*y + x + 9 = 10*x + y => 9*y - 9*x = -9
We are left then that:
9*y + 9*x = 81 (1)
9*y - 9*x = -9 (2)
we add both equations
18y = 72
y = 72/18 = 4
replacing
x + y = 9
x + 4 = 9
x = 5
Therefore the number is (10y + x) => (10 * 4 + 5) => 45
a) The answer is 3/3, as that makes it a whole. Whole = 1.
b) The answer is 8 as having a denominator of 1 makes it a whole already. That's 8 wholes.
A graph of this equation y - 2 = -3/4(x - 6) is shown in the image attached below.
<h3>What is a graph?</h3>
A graph can be defined as a type of chart that is typically used for the graphical representation of data on both the horizontal and vertical lines of a cartesian coordinate, which are the x-coordinate and y-coordinate.
Next, we would rearrange and simplify the given given equation in slope-intercept form in order to enable us plot it on a graph:
y - 2 = -3/4(x - 6)
Opening the bracket, we have:
y - 2 = -3x/4 + 18/4
y = -3x/4 + 18/4 + 2
y = -3x/4 - 26/4
y = -3x/4 - 13/2
Therefore, the slope is equal to -3/4 and the y-intercept is equal to -13/2.
In conclusion, we can logically deduce that the graph representing the given linear equation does not show a proportional relationship between the value of x and y.
Read more on graphs here: brainly.com/question/4546414
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Answer:
Carlos rode further than on Saturday by 107/56 miles.
Step-by-step explanation:
i did the quiz lol
Answer:
He runs 2/3 mile in 8 mins, he runs one mile in 12 mins