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Novosadov [1.4K]
4 years ago
7

When a certain over the counter drug enters the bloodstream, it gradually dilutes, decreasing exponentially. You take a 200 mg d

ose at 8:00PM, and by 11:00PM, there is only 75 mg remaining.
If the drug is only effective with at least 65 mg in the blood stream, about what time should you take another dose?
Assume you don’t take another dose after 8:00PM, how much would be left in your blood stream after 10 days?
Mathematics
2 answers:
Rainbow [258]4 years ago
8 0
175 should be your answer
Nostrana [21]4 years ago
3 0

Answer:175

Step-by-step explanation:

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3 years ago
Ed bus a box of eggs costing £2.30, two packs of bacon for £2.60 each and two tins of baked beans. He pays with a £10 note gets
kirill115 [55]

Answer:

£0.85 for each

£1.70 for both

Step-by-step explanation:

Variable x = cost of baked beans

2.30 + 2(2.60) + 2x = 10 - 0.80

Use PEMDAS

2.30 + 5.20 + 2x = 10 - 0.80

7.50 + 2x = 9.20

Subtract both sides by 7.50

2x = 1.70

Divide both sides by 2 to isolate the variable

x = 0.85

Let's check our work by plugging this into our original equation

2.30 + 2(2.60) + 2(0.85) = 10 - 0.80

2.30 + 5.20 + 1.70 = 10 - 0.80

7.50 + 1.70 = 9.20

9.20 = 9.20

Our number is correct

7 0
3 years ago
5x-3-2x/7=24 solve for x
bearhunter [10]

Answer:

X=5.7

Step-by-step explanation:

5x-3-2x/7=24

We simplify the equation to the form, which is simple to understand  

5x-3-2x/7=24

Simplifying:

5x-3-0.285714285714x=24

We move all terms containing x to the left and all other terms to the right.  

+5x-0.285714285714x=+24+3

We simplify left and right side of the equation.  

+4.71428571429x=+27

We divide both sides of the equation by 4.71428571429 to get x.  

x=5.72727272727

7 0
3 years ago
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