Answer:
378.5 or just 378
Step-by-step explanation:
This is a linear model with x representing the number of generations that's gone by, y is the number of butterflies after x number of generations has gone by, and the 350 represents the number of butterflies initially (before any time has gone by. When x = 0, y = 350 so that's the y-intercept of our equation.)
The form for a linear equation is y = mx + b, where m is the rate of change and b is the y-intercept, the initial amount when x = 0.
Our rate of change is 1.5 and the initial amount of butterflies is 350, so filling in the equation we get a model of y = 1.5x + 350.
If we want y when x = 19, plug 19 in for x and solve for y:
y = 1.5(19) + 350
y = 378.5
Since we can't have .5 of a butterfly we will round down to 378
40+3+.04+.003
expanded form is showing what you have to add together
Answer:
An exponential
Step-by-step explanation:
The second one is ratio
Answer: 10 bags
Step-by-step explanation:
First we must calculate the field area. Assuming it is a rectangle then its area equals the product of its length times its width
You use 8 pounds of fertilizer per 1,000 square feet
So the amount of fertilizer you should use is:
As the fertilizer comes in bags of 50 pound then you need
Since you can not buy 9.2 bags then we round up to the next whole number.
Finally you need 10 bags of fertilizer
