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Tomtit [17]
3 years ago
15

What is the final amount if 1235 is increased by 4% followed by a 4% decrease?

Mathematics
2 answers:
klasskru [66]3 years ago
7 0

Answer: <em>1233.02</em>

Step-by-step explanation:

<em>4% = 0.04</em>

<em>1235 × 0.04 = 49.4 (the original number was increased by this amount)</em>

<em>1235 + 49.4 = 1284.4 (new number after increment)</em>

<em>1 284.4 × 0,04 = 51.376 (the number has been reduced by this amount)</em>

<em>1284.4 - 51.376 =  1233.024- final amount.</em>

<em>Rounded to 2 DP: 1233.02</em>

madam [21]3 years ago
4 0

Answer:

1233.02 to 2 D.P.

Step-by-step explanation:

4 % = 0.04

So to obtain the amount after increase by 4% we multiply by 1.04:

1235 * 1.04 = 1284.4

Decreasing by 4%:  we mutriply by 1 - 0.04 = 0.96:

1284.4 * 0.96

= 1233.024.

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Nikolay [14]
The answer is:  [B]:  " -10a + 6b² − 4b + 3 " .
_____________________________________
Explanation:
____________________
Given:
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  -2(5a − 3b²) − 4b + 3 ;  
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    "Use the distributive property [of multiplication] to expand the expression."
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Note the distributive property of multiplication:
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           a(b + c) = ab + ac ;
           a(b − c) = ab − ac ;
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So, we have:  " -2(5a − 3b²) − 4b + 3 "  ;
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Start  with:  " -2(5a − 3b²) " ; 
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   -2(5a − 3b²)  =  (-2*5a) − (-2*3b²)  =  (-10a) − (-6b²)
 
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        → Now, bring down the rest of the problem; 
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  -10a + 6b² − 4b + 3 ;  which is:  Answer choice:  [B].
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skelet666 [1.2K]

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The line has a slope of -1.

Step-by-step explanation:

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