Answer:
y=-70x+350
Step-by-step explanation:
Since x is the number of years since 1995, this means that at 1995, x=0. This also means that in 2000, x=5. The values of the stuffed animals were 350 in 1995 and 0 in 2000. The formula for slope is rise over run, so we can find the answer using this mathematical expression: y2-y1/x2-x1. Plugging in our values, we get 0-350/5-0 which simplifies into -350/5. This further simplifies into -70. Our slope is -70. The definition of y-intercept is the value of y when x=0. We know that x=0 at 1995 and the value for the stuffed animals was 350 at that time. This tells us that the y-intercept is 350. Slope-intercept form is y=mx+b, so plugging in our information, we get y=-70x+350.
Given :
There are 50 people at the city swim park today. Everyone in the park was wearing swim suits or sunglasses, some people had both.
38 have swim suits on and 25 have sunglasses.
To Find :
How many people had swim suits on but not sunglasses.
Solution :
Let, A refer swim suits and B refer sunglasses.
∞∪∩
A ∪ B = 50
A = 38
B = 25
We need to find, A - (A ∩ B) .
We know,
(A ∩ B) = A + B - (A ∪ B)
(A ∩ B) = 38 + 25 - 50
(A ∩ B) = 13
So, A - (A ∩ B) = 38 - 13 = 25
Therefore, number of people with swim suits on but not sunglasses are 25.
To solve this, plug in 1.5 for t in each equation to see which one is true.
1) 2(1.5) = -3 False, 2(1.5) = 3, not -3.
2) 1.5/10 = 15 Falso, 1.5/10 = .15, not 15.
3) 4(1.5) = 6 This is True, so most likely the correct answer, but it's beneficial to check them all.
4) 6(1.5) = 4 False, 6(1.5) = 9, not 4.
Therefore, the correct answer is 4t = 6 because you can plug 1.5 in and it will remain true.
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Well she can only buy five times a week. So would the inequality be something like 5 is less then or equal to 10. Sorry if I’m wrong