60 times 3/5 = 36. 20 times 3/5 = 12. 12 + 36 = 48. Javar scored a total of 48 points.
Answer:
3
Step-by-step explanation:
-m+8=4m-7
8=4m-(-m)-7
8=4m+m-7
8=5m-7
5m=8+7
5m=15
m=15/5
m=3
X<span>(6 + </span>x)(x<span> + -4) = 24x ... + 2x</span>2<span> + </span>x3<span> = 0 </span>Factor out<span> the Greatest Common Factor (GCF), '</span>x<span>'. </span>x<span>(-48 + 2x + </span>x2<span>) = 0 ... Set the factor '(-8 + -1x)' equal to zero and attempt to </span>solve<span>: Simplifying -8 + -1x = 0 ... box </span>will<span> make the calculator automatically</span>solve<span> for the first variable it sees.</span>
<span>If x represent the number of nickels in the box and y represent the number of dimes in the box (note that x>0 and y>0), then the total value of x nickels is $5x and total value of y dimes is $10y. Adding these amounts of money you get that in money box was $</span><span><span>(5x+10y)</span>.</span>
<span> Sally knows that she has less than $20 in the box, then 5x+10y<2000 ($20=2000 cents).
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Since this inequality is strict, then you should draw the dashed line 5x+10y=2000. The line divides coordinate plane into two parts.
Pick point (0,0) and consider to which part this point belongs. Since 5·0+10·0<2000, you can conclude that (0,0) is a solution of given inequality and belongs to needed part. Hence you should take the shaded part below the line for positive values of x and y.
