Answer:
7/6
Step-by-step explanation:
m = (y2-y1)/(x2-x1)
Using the given points
m = (-2 - -9)/(2 -8)
= (-2+9) / (-6)
= 7/6
The formula for simple interest is <em>I</em> = <em>prt</em>, where <em>I </em>is the amount of interest, <em>p</em> is the principal invested, <em>r</em> is the rate as a decimal number and <em>t</em> is the amount of time. Substituting our given information we have
128 = <em>p</em>(0.016)(2) ----- 1.6% = 1.6/100 = 0.016
128 = <em>p</em>(0.032)
Divide both sides by 0.032:
128/0.032 = <em>p</em>(0.032)/0.032
4000 = <em>p</em>
He needs to invest $4000.
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A recipe calls for 1/2 a cup of flour per batch of cookies, but the chef only wants to make 2/3 of a batch. How much flour should the chef add?