4 years ago

What is the value of x in the equation 2x = 368-4

Mathematics

2 answers:

atroni [7]4 years ago

6 0

The value of X is
x= 182

Roman55 [17]4 years ago

3 0

Answer: x=182

To find the answer to this problem simply finish the right side (by subtracting 4 from 368) which will get you 364. Then isolate the x by dividing by two on each side. This will get you x=182.
Here are the steps written out (btw -:- is division symbol)
1. 2x=368-4
2. 2x=364
3.2x=364
-:- 2 -:-2
4. x=182

Hope this helps!

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The mass of a particular substance is known to grow exponentially at a rate of 1.5% per day. Its initial mass was 230 grams and,

Papessa [141]

Answer:

23 days

Step-by-step explanation:

Given that the mass of a particular substance is known to grow exponentially at a rate of 1.5% per day

Initial mass = $230 gm$

After t days, mass = $325 gm$

The equation is

$P(t) = 325 = 230 (1+\frac{1.5}{100} )^t\\\frac{325}{230} =1.015^t\\log 1.413 = t log 1.015\\t = \frac{log 1.413}{log 1.015} =\frac{0.1502}{0.0065} \\=23.229$