Find how many people are in larger group
The group of people could rent the social hall for $600. When five more people join venture cost per person is reduced by $10. Find how many people are in larger group?
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What equation would you use to calculate the volume of the stock solution needed to prepare a solution that has a concentration that is less than 20% (v/v) (like 15% for example) in a 10mL flask if you have a 20% (v/v) ethanol solution.
Determine the phase difference among the current in the circuit and voltage a criss the inductor?
Sylvia has the apple orchard. One season, her 100 trees yielded 140 apples per tree. She wishes to increase the production by adding more trees to orchard.
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Determine (i) the capacitance in pico-farads (ii) the magnitude of the charge in nano-coulombs on each plate (iii) the stored energy in micro-joules, (iv) the electric field in N/C among the plates (v) the energy density among the plates.
Let x, y, z be i.i.d. uniform random variables over the interval [0,20]. Let U=min(X,Y,Z) V=max(X,Y,Z). Find E(U), E(V), Var(U), Var(V), Cov(U,V) and correlation coefficient of U and V.
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What is the Ksp of lead(II) sulfate when a saturated solution of lead(II) sulfate can be prepared by diluting the 0.0101 g of PbSO4 to 250 mL.
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