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amm1812
3 years ago
14

Caffeine leaves a child's body at a rate of 15 % per hour . A child drinks a beverage containing How long until half the caffien

e is gone ?
Mathematics
1 answer:
Butoxors [25]3 years ago
4 0

Answer:

6.6 HOURS!

Step-by-step explanation:

Hope this helps!

:D:D:D:D

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How do I do this I’m not sure on this one
jonny [76]
Hi! So basically what you'll be doing is multiplying the exponents together :))
So It'd be 3x5 which is 15 so it'd be 10 to the power of 15.

Hope I helped :)) and ask more if you need help
-Kaylie
5 0
3 years ago
I am stuck on these last four questions please help if possible.
zloy xaker [14]

Answer:

Step-by-step explanation:

9). -2.2(4 - 1.9x) = 3.3(0.2x - 0.8)

    -8.8 + 2.2(1.9x) = 0.66x - 2.64

    -8.8 + 4.18x = 0.66x - 2.64

     4.18x - 0.66x = 8.8 - 2.64

     3.52x = 6.16

     x = 1.75

10). 3.2(1 + 2.6x) = 2.4(x - 3.6)

     3.2 + 8.32x = 2.4x - 8.64

     8.32x - 2.4x = -3.2 - 8.64

     5.92x = -11.84

      x = 2

11). 4.6(2x - 5.5) = 3.9 + 0.8(1 + 5.5x)

     9.2x - 25.3 = 3.9 + 0.8 + 4.4x

     9.2x - 25.3 = 4.7 + 4.4x

     9.2x - 4.4x = 25.3 + 4.7

     4.8x = 30

      x = 6.25

12). 0.2(3x + 2.5) - 4.9 = 3.8 - 2.2(x - 5.5)

     0.6x + 0.5 - 4.9 = 3.8 - 2.2x + 12.10

     0.6x - 4.4 = -2.2x + 15.90

     0.6x + 2.2x = 15.90 + 4.4

     2.8x = 20.30

     x = 7.25

4 0
2 years ago
How many of the first 999 Fibonacci numbers are odd?
liq [111]
Every 3rd number is even with 2 odd numbers in between successive even numbers.

999/3 = 333 x 2 = 666.
6 0
3 years ago
Please help<br> hahahahaaahahaahahaaha
Blababa [14]

Answer:

The answer is 22.

Step-by-step explanation:

Just well use a calculator. If you don't have that then use PEMDAS. Hope it helps.

5 0
2 years ago
Read 2 more answers
Use the right triangle ABC. The figure is for reference only and is not drawn to scale. If AC = 16 cm and AB = 34 cm what is the
Alex73 [517]

Answer:

AB = 34 and AC = 16

BC^2 = 34^2 - 16^2

BC^2 = 1,156 - 256

BC^2 = 900

BC = 30

Step-by-step explanation:

4 0
3 years ago
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