Rooney's company decides to buy some keyboards, mouse cursors and PC Cameras. They have a budget for $1500 to spend on $30 keyboards, $20 mice and $50 cameras. Additionally, the number of the cursors should be equal to that of the keyboards and the keyboards are twice the numbers of cameras. How many of each item should he buy? The only thing I'm struggling with is turning the word problem into linear system of equations. Can someone help me out?​

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

the radius is 2 times the diameter.

step-by-step explanation:

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x