A landscaper has a total of $800 to spend on bushes at $20 each and trees at $50 each

Mathematics

1 answer:

NemiM [27]3 years ago

4 0

Answer:

x=40 y=16

Step-by-step explanation:

20x+50y=800 you can turn it into slope-intercept form and it would end up being y=-2/3x+16 so now you have your y intercept (16) and you know your rise and run -2(rise)3(run).

Or you can substitute a zero for x and solve for y

20(0)+50y=800 which equals 50y=800 which equals 16 y=16

then you substitute a zero for y and solve for x

20x+50(0)=800 which equals 20x=800 which equals 40 x=40

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A random number generator is used to select an integer from 1 to 100 (inclusively). What is the probability of selecting the in

natima [27]

Answer:

The correct answer is zero.

Step-by-step explanation:

A random variable generator selects an integer from 1 to 100 both inclusive leaves us with total number of possible sample as 101.

We need to find the probability of selecting the integer 194.

The probability of selecting 194 from the sample is zero as the point does not exist in the random variable generator. Thus we can never pick 194 from the random variable generator giving us the probability a zero.

5 0

3 years ago

HELP?

poizon [28]

My "work" is to enter the equations into a graphing calculator and let it show me the answers--just as your "work" is to copy the question to Brainly.

The solutions are
(x, y) = (-0.5, 7.5)
(x, y) = (3, 25)

_____
When you equate the expressions for y, you get the quadratic
2x² -5x -3 = 0
(2x +1)(x -3) = 0
x = -1/2 or 3
y = 5(x +2) = 15/2 or 25