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ahrayia [7]
3 years ago
12

If your olive garden bill cost $27.98 and you left a 18% tip how much do you leave altogether?

Mathematics
1 answer:
yarga [219]3 years ago
3 0

Answer:

39.69

77.21(I’m not to sure if this one is accurate)

Step-by-step explanation:

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Is it true or false you get (2,12) after you solve 3x-1/2y=0?
klemol [59]

It's true that (2, 12) is a solution of  3x-1/2 y = 0 .

It's also true that  (1, 6),  (3, 18),  (5, 30),  (9, 54),  (150, 900),
and (12 million, 72 million) are also perfectly correct solutions.

Any pair of numbers where the 'y' number is six times as much as
the 'x' number is a solution to that equation.

There are an infinite number of them.

5 0
3 years ago
(1 point) The intensity of light at a depth of x meters below the surface of a lake satisfies the differential equation dIdx=(−1
snow_tiger [21]

Answer:

0.573 m

Step-by-step explanation:

a. To find the depth, x, we first solve the differential equation to find the expression for I  

dI/dx = (-1.21)I

dI = (-1.21)Idx

dI/I = -1.21dx

Integrating both sides, we have

∫dI/I = ∫-1.21dx

㏑I = -1.21x + C

I = exp(-1.21x + C)

I = exp(-1.21x)exp(C) Let exp(C) = A

I =Aexp(-1.21x)

when x = 0, I = L. Substituting these into the equation, we have

L = Aexp(-1.21 × 0)

L = Aexp(0)

L = A

So, I = Lexp(-1.21x)

we want to find x when I = L/2.

So, L/2 = Lexp(-1.21x)

1/2 = exp(-1.21x)

-1.21x= ㏑(1/2)

-1.21x= -㏑2

x = -㏑2/-1.21

x =  0.693/1.21

x = 0.573 m

6 0
3 years ago
A farmer has 1800 feet of fence and wants to enclose a rectangular field with two internal fences parallel to one side. What are
andrew-mc [135]
So.. if you notice the picture below.. .the length is that much

thus    \bf A=lw\qquad \cfrac{1800-3w}{2}=l\implies 900-\cfrac{3w}{2}=l
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A=\left( 900-\cfrac{3w}{2} \right)w\implies A=900w-\cfrac{3w^2}{2}\implies A=900w-\cfrac{3}{2}w^2

take the derivative of A, zero it out, and then check the critica points for any maxima by using the first-derivative test

8 0
4 years ago
Your heart beats 240 beats per 4 minutes at this rate how many times will your heartbeat in a hour
nydimaria [60]
3,600 hope this helps you
3 0
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pogonyaev
In this question, you know that the machine packs \frac{2}{3} of a box every \frac{1}{2} of a minute. Since it is constant, you simply have to double the half a minute to a full minute and then also double the rate to get \frac{4}{3} boxes packed per minute. And \frac{4}{3} is equal to 1\frac{1}{3}
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4 years ago
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