<span>MCAS Open-Response Questions & Answers. Mathematics – Middle School Level. Wachusett Regional School District. 1. Rev. April 2003 srm. Question #1 ..... If the grocer uses the same number of 5kg bags as. 2kg bags, how many bags did he use in all? Answer #16 x = total number of bags. 5(1/2x) + 2(1/2 x) = 252.</span><span>
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The equation that we can create from this situation is:
i = (190 – 5 x) * (29 + x)
where i is the income and x is the increase in daily rate
Expanding the equation:
i = 5510 + 190x – 145x - 5x^2
i = -5x^2 + 45x + 5510
Taking the 1st derivative:
di/dx = -10x +45
Set to zero to get the maxima:
-10x + 45 = 0
x = 4.5
So the cars should be rented at:
29 + x = 33.5 dollars per day
The maximum income is:
i = (190 – 5*4.5) * (33.5)
i = 5,611.25 dollars
Answer:
=8x+132
Step-by-step explanation:
Combine Like Terms:
=7+8x+45+80
=(8x)+(7+45+80)
=8x+132
Give me brainllest plz T-T
Answer:
Step-by-step explanation:
1. Sinking Fund: Expenses like these are predictable. You know exactly when they’re going to come due, and you know at least approximately how much they’re going to cost"
So we have: down payment for a car, saving to start a business, saving for a college education
2. Rainy-Day Fund: unexpected expense you have to pay,
So we have: plumbing expenses, paying to fix a broken air conditioner, unexpected travel expense, plumbing expenses
