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aleksandrvk [35]
3 years ago
10

If y is directly proportional to x and Y = 40 when x=4 what is the value of x when y =23

Mathematics
1 answer:
ale4655 [162]3 years ago
7 0

Answer:

Step-by-step explanation:

X∝Y

4∝40

X∝23

(23×4) ÷ 40 = 2.3

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If ABCD is an isosceles trapezoid, what is the value of x?<br><br><br> AC = 5x - 25<br> BD = 3x + 11
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X=18

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In a race in which eleven automobiles are entered and there are no ties, in how many ways can the first three finishers come in?
viva [34]

Answer:

990 ways

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The total number of automobiles we have is 11.

Now, what this means is that for the first position , we shall be selecting 1 out of 11 automobiles, this can be done in 11 ways( 11C1 = 11!/(11-1)!1! = 11!/10!1! = 11 ways)

For the second position, since we have the first position already, the number of ways we can select the second position is selecting 1 out of available 10 and that can be done in 10 ways(10C1 ways = 10!9!1! = 10 ways)

For the third position, we have 9 automobiles and we want to select 1, this can be done in 9 ways(9C1 ways = 9!/8!1! = 9 ways)

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8 0
3 years ago
5. Write the slope-intercept form of an equation for a line with y-intercept 9 and
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The graph shows a proportional relationship Which equation matches the graph
tankabanditka [31]

The equation for the graph passing through the points (0, 0) and (3, 12) is y = 4x.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

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The equation for the graph passing through the points (0, 0) and (3, 12) is y = 4x.

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2 years ago
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X - C. X - C = d * 2
-------- = d --->
2
Then add X from each side

C = d * 2 + X
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2 years ago
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