Answer:
less value
Step-by-step explanation:
To deterimine if value was improved or not, we need to compare the price reduction to the size reduction.
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The reduction in price is ...
((new value)/(old value) -1) × 100%
= (42/50 -1) × 100% = -16%
The size reduction of 20% is more than the price reduction of 16%, so the chocolate bar is <em>less value</em>.
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<em>Additional comment</em>
Compared to the original value, the new price to chocolate ratio is ...
0.84/0.80 = 1.05
Effectively, the price was raised by 5%.
The answer is -12 bc you take away the 3
96 is the result 200 x .48
If cos x= sin(20 + x)° and 0° < x < 90° then value of x is 35 degrees
<em><u>Solution:</u></em>
Given that:

We know that,



Taking cos x as common,


By trignometric functions,
sin 20 = 0.34202
cos 20 = 0.939692
So,

Therefore,
x = arc tan (0.7002)
x = 35 degrees
Therefore value of x is 35 degrees
<h3><u>Method 2:</u></h3>
cos x = sin (20 + x)
sin and cos are co - functions, which means that:
cos x = cos [90 - (20 + x)]
cos x = cos (90 - 20 - x)
cos x = cos (70 - x)
Therefore, x = 70 - x
x + x = 70
2x = 70
x = 35
Therefore value of x is 35 degrees