pypski

An investor has 98 000 to invest. If part is invested at 5% at the rest at 10% how much should be invested at each rate to yield 8% on the total amount? How much will be the interest on the total?

9 years ago

A radioactive substance decays to the formula N=8e^-0.6t , where N is the number of milligrams present after t hours. Determine the initial amount of the substance to the nearest 10th of an hour, determine the half life of the substance, and determine the...

8 years ago

A couple purchased a home 5 years ago with a 20-year mortgage for $50,000 at an interest rate of 6% compounded monthly. The home is now valued at $90,000. A) How much are the couple's monthly payments? B)What is their balance after 7 years and how much eq...

8 years ago

Any help at all is deeply appreciated. I am trying to figure out the formulas to use for the following problems: 1. Suppose that in a monopoly market the total cost per week of producing a high tech product is given by C(x) =3600+100x+2x^2. Suppose furthe...

8 years ago

2.) Maximizing revenue: The quantity demanded each month of the Sicard wristwatch is related to the unit price by the equation p=50/0.01x^2 + 1 (0 < or = x < or = 20) where p is measured in dollars and x is measured in units of a thousand. To yield a maxi...

8 years ago

1.) Air pollution: According to the South Coast Air Quality Management District, the level of Nitrogen dioxide, a brown gas that impairs breathing, present in the atmosphere on a certain May day in down town Los Angeles is approximated by A(t) = (0.03t^3)...

8 years ago

3.) The demand equation for a certain product is q=500-40p+p^2 where p is the price per unit (in dollars) and q is the quantity of units demanded (in thousands). Find the point elasticity of demand when p = 15. If this price of 15 is increased by ½%, wha...

8 years ago

How many critical values does the function f(x) = 3x^4 + 4x^3 have?

8 years ago

round to the nearest whole number up and down 399.9 = 400 400.1 = 400 ` Round to the nearest hundred up and down 401 = 400 399 = 400

8 years ago

Omg you are amazing. You don't even know. I have been sitting here trying to figure this out for hours. Thank you so much! (Idk about the time thing, that's how it's written) THANK YOU!

8 years ago

He questions why it floods, and why it is the only river with no breeze flowing through it

8 years ago

1. Expulsion of the Hyksos, and invading group of foreigners, 2. Military campaigns to Kush, NUbia and Libya, 3. Elevation of Hatshepsut (a feamle) to the position of King of Egypt, 4. Expansion of the Karnak Temple, 5. More sophisticated priesthood at Ka...

8 years ago

Thank you very much! <3

8 years ago

9/5? so 1 and 4/5th of a chocolate bar? There's only one bar right? Is that a typo?

8 years ago

Solution 1 Use this rule: a÷b/c=a×c/b 9/5 x 1/3 2 Use this rule: a/b×c/d=ac/bd 9x1/5x3 3 Simplify 9×1 to 9 9/5x3 4 Simplify 5×3 to 15 9/15 5 Simplify 3/5 Done

8 years ago

179.83 cm 1 inch - 2.54 cm

8 years ago

I do not understand how to get 10....

8 years ago

Do I just plot the graph filling in 1 2 3 etc for x?

8 years ago

where p is the price per unit (in dollars) and q is the quantity of units demanded (in thousands). Find the point elasticity of demand when p = 15. If this price of 15 is increased by 1/2%, what is the approximate change in demand? I don't know why it put...

8 years ago

So, I just plug the numbers (1-7) or (1-8) in for x and make a graph?

8 years ago

The inner core is solid, the outer core is liquid, and the mantle solid/plastic. This is because of the relative melting points of the different layers (nickel–iron core, silicate crust and mantle) and the increase in temperature and pressure as depth inc...

8 years ago

So if I plug 15 into p. I get q(demand) = 125 Half of 15 is 7.5. Thus the price would be 22.5.. I think. I replace p with 22.5 and I get q= 106.25 Q/P =8.33 for 15 Q/P = 4.722 for 22.5 Is the change in demand 3.608?

8 years ago

I know f' has to = zero. Is the answer 2? (x=0,−1)

8 years ago