The spanish club held a car wash to raise money. the equation y=5x represents the amount of money y club members made for washing x cars. identify the constant of proportionality. then explain what it represents in this situation.

The constant or proportionality is 5 and it represents the cost of washing per car.

Step-by-step explanation:

Given equation that represents the price of washing of x cars,

y = 5x (1)

∵ by the above equation with increasing x, y increases directly,

⇒ y is directly proportional to x,

That is, y ∝ x (2),

By comparing equation (1) and (2),

5 is the constant or proportionality,

If x = 1, y = 5

Thus, the price of washing per car is 5.

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584