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Masteriza [31]
3 years ago
12

Amelia pays $24 to rent a boat at the lake for up to six hours she constructs the inequality and number line below to represent

the number of hours X she can use the boat?
Mathematics
1 answer:
liubo4ka [24]3 years ago
5 0
Money= how many hours
$4= 1h
$8=2h
$12=3h
$16=4h
$20=5h
$24=6h
l hope that helps :)
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A medication with an initial concentration of 1. 5 milligrams per liter is administered to a
lesya [120]

Answer: Exponential decay model:

y

=

x

(

1

−

r

)

t

, half life of tablet is about

2

hours and after

t

=

3

hours , remaining drug on patient's system is

42.875

mg.

Step-by-step explanation: Initial drug

x

=

125

mg ; rate of decay

r

=

30

100

=

0.3

gm/hour

Exponential model:

y

=

x

(

1

−

r

)

t

=

125

(

1

−

0.3

)

t

=

125

⋅

0.7

t

Half life:

y

=

125

2

=

62.5

mg

∴

62.5

=

125

⋅

0.7

t

or

0.7

t

=

1

2

. Taking logarithm on both sides we get ,

t

log

(

0.7

)

=

log

(

0.5

)

∴

t

=

log

(

0.5

)

log

(

0.7

)

≈

1.94

(

2

d

p

)

hour

The half life of tablet is about

2

hours.

After

t

=

3

hours , remaining drug on patient's system is

y

=

125

⋅

0.7

t

=

125

⋅

0.7

3

=

42.875

mg [Ans]

8 0
2 years ago
Help help i need help with this
aliina [53]

Answer:

1) 8 2) -33/9

Step-by-step explanation:

1) (1/2)x = -1/2 + 9/2

(1/2)x = 4 x = 8

2) distributing 3/2, 9x/2 - 15/2 = -24

9x/2 = -24 + 15/2

9x/2 = -33/2

9x = -66/2

9x = -33

x = -33/9

5 0
3 years ago
Please help please please help
aleksklad [387]

Answer:

Step-by-step explanation:

<u><em>   Number    </em></u><em>         </em><u><em>   Estimate using a single digit and power of 10  </em></u>

23,898,497                      2 × 10⁷          

0.000136                          1 × 10⁻⁴

26,857                              3 × 10⁴

0.0302                             3 × 10⁻²

3 0
3 years ago
Need help solving asap
Marta_Voda [28]

Answer:

BC

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
I also need help with this one so pls help me
Masja [62]

Answer:

the answer is 39

Step-by-step explanation:

you take 300 - 271 and you get 39

6 0
3 years ago
Read 2 more answers
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