Patricia but 16 hair clips for three dollars X number of hair clips cost $.15 each of the rest cost $.20 each write inequality in terms of X and find the minimum number $.15 hair clips that she bought

The inequality in therms of x is .

Patricia had bought at least 4 hair clips of cost $0.15 each.

Step-by-step explanation:

Given:

16 hair clips = $3

hair clips = $0.15 each

hair clips = $0.20 each

We need to find the minimum number of hair clips of $0.15 that she bought.

Solution:

Now we can say that;

hair clips multiplied by $0.15 plus hair clips multiplied by $0.2 should be less than or equal to 3.

framing in equation form we get;

Hence The inequality in therms of x is .

Combining like terms we get;

Dividing both side by -0.05 we get;

Hence Patricia had bought at least 4 hair clips of cost $0.15 each.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734