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bulgar [2K]
3 years ago
6

Find the difference 9 4/5x- 4/80x A 7/5X B 9 4/5X C 7 4/5X D 11 4/X

Mathematics
1 answer:
Agata [3.3K]3 years ago
5 0

Answer:

B.

Step-by-step explanation:

I'm assuming it's written like this when solving it:  9\frac{4}{5} x-\frac{4}{80} x

first change the mixed number to an improper fraction and change to a common denominator

\frac{49}{5}x-\frac{4}{80}  -----> \frac{784}{80} - \frac{4}{80}

\frac{784}{80}x - \frac{4}{80}x = \frac{39}{4}x\\ ≈ 9\frac{4}{5}x

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Will the product of a positive number and a negative number be positive or negative? Why?
MA_775_DIABLO [31]

Answer:

negative

Step-by-step explanation:

positive * positive = positive

negative * positive = negative

negative * positive = negative

5 0
3 years ago
Which expression is equivalent to (s+7) + 8 by the Associative Property of Addition? *
Maurinko [17]
An equivalent expression would be s+15


You simplify the expression.

So yea the answer is s+15
7 0
3 years ago
Read 2 more answers
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 some one help me match these ?
Anastaziya [24]
This is the order....

8 0
4 years ago
Solve the 3D figure Rectangle is A=BH<br> Triangle is A=1/2BH
IceJOKER [234]

Answer:

The area of the 3d figure

Step-by-step explanation:

the area of the one of triangle is 8.7

and the reactangle is 5 x 7 = 35

and the big one is 10 x 7 = 70

so 8.7 + 8.7 + 35 + 35 + 70 = 157.4

7 0
2 years ago
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