<span>y=-40x+100 This equation says your friend lives 100 miles away and travels 40 miles per hour. He takes 2.5 hours to get there.
y = -40x + 100 If y=0 then x = 100/40 = 2.5 hours and if x=0 then y=100.
You are 150 miles away and it takes you 2.5 hours to get there so your equation is:
0 = -2.5v + 150 You are solving for velocity.
v = 150/2.5 = 60 miles per hour. Now we can write the answer to the problem.
y = -60x + 150 Compare that to the original statement.
y = -40x + 100 Your buddy's speed is 40 and yours is 60. He has 100 miles to go and you have 150. Otherwise it's the same equation.</span><span>
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The answer is D. The grand total for 12th graders is 68. Divide the 28 students in 12th grade who prefer math by the grand total to get you a rounded answer of 0.412.
Answer: Jenna sold 280 boxes, Becca sold 105 boxes.
Step-by-step explanation: For every 3 boxes B sold, J sold 8 boxes and ended with a total of 385 boxes sold. 3b+8j=385 From how the question is asked, we can assume that each round of sales would equal 11 total sales. (3b+8j=11) Knowing the sales take place in intervals of 11, we can solve the problem by doing 385/11. 385/11=35 Finally, with 35 rounds of sales happening and knowing Jenna sells 8 while Becca sells 3 at each one, all that's left to do is multiply. 8x35=280 3x35=105 To be sure we can check our answer by adding them together, 280+105=385.
