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amid [387]
3 years ago
8

Explain how to make these couculations mentally a. 99x6 b. 99x15

Mathematics
2 answers:
Sergeeva-Olga [200]3 years ago
6 0

Answer:

a is 594 and b is 1485

Step-by-step explanation:

puteri [66]3 years ago
5 0

Answer:

a. 594 b. 1485

Step-by-step explanation:

do it step by step.

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Chase consumes an energy drink that contains caffeine. After consuming the energy drink, the amount of caffeine in Chase's body
PIT_PIT [208]

Answer:

(a) The 5-hour decay factor is 0.5042.

(b) The 1-hour decay factor is 0.8720.

(c) The amount of caffeine in Chase's body 2.39 hours after consuming the drink is 149.112 mg.

Step-by-step explanation:

The amount of caffeine in Chase's body decreases exponentially.

The 10-hour decay factor for the number of mg of caffeine is 0.2542.

The 1-hour decay factor is:

1-hour\ decay\ factor=(0.2542)^{1/10}=0.8720

(a)

Compute the 5-hour decay factor as follows:

5-hour\ decay\ factor=(0.8720)^{5}\\=0.504176\\\approx0.5042

Thus, the 5-hour decay factor is 0.5042.

(b)

The 1-hour decay factor is:

1-hour\ decay\ factor=(0.2542)^{1/10}=0.8720

Thus, the 1-hour decay factor is 0.8720.

(c)

The equation to compute the amount of caffeine in Chase's body is:

A = Initial amount × (0.8720)<em>ⁿ</em>

It is provided that initially Chase had 171 mg of caffeine, 1.39 hours after consuming the drink.

Compute the amount of caffeine in Chase's body 2.39 hours after consuming the drink as follows:

A = Initial\ amount \times (0.8720)^{2.39} \\=[Initial\ amount \times (0.8720)^{1.39}] \times(0.8720)\\=171\times 0.8720\\=149.112

Thus, the amount of caffeine in Chase's body 2.39 hours after consuming the drink is 149.112 mg.

4 0
3 years ago
Can anybody please answer question 6
rewona [7]

Answer:

2 to 12

Step-by-step explanation:

its not that hard

7 0
3 years ago
alison has 1/2 cup of yogurt for making fruit parfaits . each parfait requires 1/8 cup of yogurt. how many parfaits can she make
alisha [4.7K]
4 cups because 8 devided by 2 is 4
5 0
3 years ago
Drag each equation to the correct location on the table.
Ket [755]

Answer:

Hi! I hope this is correct please inform me if this is incorrect :)

a = 1 will have.

2a + 3 < 9 - 3a.  

2a + 3 > 10 -3a.  

3a - 2a + 1>2.

a = 2 will have

ANY others I did not include in a = 1 :)

Please once again tell me if this is incorrect.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
... What is P(A/B)?
Orlov [11]
Uuuuhhhhhh I am sooooo confused as I haven’t even learned this concept yet
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3 years ago
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