In the problem 3r=9/10 how do you solve this to find out what r is

Mathematics

1 answer:

aniked [119]3 years ago

5 0

One way to solve this problem is by:
First multiply both sides by 10
30r=9
Now divide by 30
r=0.3 Final Answer

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I need help on 5 and 6 please help me

VashaNatasha [74]

Repeat this on number 6.. all you have to follow is match up the sides and angles

8 0

3 years ago

Henry is taking a medicine for a common cold. The table below shows the amount of medicine f(t), in mg, that was present in Henr

Elden [556K]

Geometric sequence general form: a * r^n
For Greg, we are given the elimination of the medicine as a geometric nth term equation:
200 * (0.88)^t
The amount of medicine starts at 200 mg and every hour, decreases by 12%;
To compare the decrease in medicine in the body between the two, it is useful to get them in a common form;
So, using the data provided for Henry, we will also attempt to find a geometric nth term equation that will work if we can:
As a geometric sequence, the first term would be a and the second term would be ar where r = multiplier;
If we divide the second term by the first term, we will therefore get r, which is 0.94 for Henry;
We can check that the data for Henry can be represented as a geometric sequence by using the multiplier (r) to see if we can generate the third value of the data;
We do this like so:
282 * (0.94)^2 = 249.18 (correct to 2 d.p)
We can tell that the data for Henry is also a geometric sequence.
So now, we just look at the multiplier for Henry and we find that every hour, the medicine decreases by 6%, half of the rate of decrease for Greg.

The answer is therefore that Henry's body eliminated the antibiotic at half of the rate at which Greg's body eliminated the antibiotic.

3 0

3 years ago

Read 2 more answers

Gwar [14]

Answer:

$x = 3$ $and$ $x = -3$

Step-by-step explanation:

In this problem, we are substituting for x.

Let us take a look at our given answers.

x = -13 and x = -3 would not work because the numbers would not add up to -5. Since we have the positive brackets (or whatever you call them.) surrounding the x variable, that means that all numbers that are plugged into x will be positive.

-13 will be turned into 13,

13 - 8 $\neq$ -5