<h3>I'll teach you how to solve 15x ^2 −4x−4</h3>
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15x ^2 −4x−4
Break the expressions into groups:
(15x^2+6x) + (-10x-4)
Factor out 3x from 15x^2+6x:
3x(5x+2)
Factor out -2 from -10x-4:
-2(5x+2)
3x(5x+2) -2(5x+2)
Factor out common term 5x+2:
(5x+2)(3x-2)
Your Answer Is (5x+2)(3x-2)
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Set it up as a proportion problem. $2.10 is to x pounds as $3.50 is to 1 pound
=$2.10/x pounds= $3.50/1 pound
Cross multiply
=($2.10 * 1)=($3.50 * x)
=2.10=3.50x
Divide both sides by 3.50
0.6= x
x= 0.6=6/10= 3/5
He can purchase 0.6 (or 3/5 in fraction terms) pounds for $2.10.
Hope this helps! :)
Answer:
53.16930 EUR
Step-by-step explanation:
Answer: False X+X is not equal to X^2 X can be any number
Step-by-step explanation:
Since percentages represent a part out of one hundred, we can start off by converting 42% to 42/100. Now that we have this, simplify the fraction so that it is in simplest form. This would be 21/50, which is your answer :)