Answer:
-10
Step-by-step explanation:
22-12=10
CHECK:
-12+(-10)=-22 (correct, and proven)
Answer:
f(1/10)=10
Step-by-step explanation:
f(x) = 1/x
f (1/10)=1/(1/10)=1·(10/1)=10
Vertex = (1,4)
Axis of symmetry is x = 1, (1,0) or just 1
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Answer:
940
Step-by-step explanation:
<em>To find the original price of something that been discount do the following:</em>
- <em>Subtract the discount from 100 to get the percentage of the original price.</em>
- <em>Multiply the final price by 100.</em>
- <em>Divide by the percentage in Step One.</em>
<em>Or we can do the following:</em>
<em>We shall consider the original price as x; hence the discount can be considered as (x−263.20). We can write the equation:</em>
<em>x · 72/100=x - 263.20</em>
<em>x · 18/25 = x - 263.20</em>
<em>Multiply both sides by 25</em>
<em>18x = 25(x - 263.20)</em>
<em>Open the brackets.</em>
<em>18x = 25x-6580</em>
<em>Add 6580 to each side.</em>
<em>6580 +18x = 25x</em>
<em>Subtract 18x from each side.</em>
<em>6580 = 7x</em>
<em>Subtract 7x from each side.</em>
<em>x = 940</em>
<em>Check Answer:</em>
<em>940 * 72% = 676.80</em>
<em>940 - 676.80=263.20</em>
<em>Hence, the regular price is 940.</em>
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<u><em>~lenvy~</em></u>