Expert Answers to Algebra 2 Problems

A jar contains 40 coins consisting of dimes and quarters and having a total value of $4.90. How many of each kind of coin are there?

Can someone help me solve this?
$5y=-<!--\; -\; -->\frac{5}{4}$

1. 5a+4(3a-8)= 4+13a
2. 2y+18=12-6(y+7)
and
3. -x-(13+14x)=-3(5-9x)+2

A company has introduced a processimprovement that reduces processing time for each unit, so thatoutput is increased by 25% with less material, but one additionalworker required. Under old process, five workers could produce60 units per hour. Labor costs are $12/hour, and materialinput was previously $16/unit. For the new process, materialis now$10/unit. Overhead is charged at 1.6 times direct laborcost. Finished units are sold for $31 each. What increase(or decrease) in productivity is associated with the process improvement?
(a) Productivity with old system
(b) Productivity with new system
(c) % change (increase or decrease) in productivity

Find the periodic payment which will amount to a sum of $15000 if an interest rate 8% is compounded annually at the end of 9 consecutive years.

Solve for x.
$w=4ax-<!--\; -\; -->9x$

Find the difference between z and its conjugate.
z = x + iy.

If the $\log <!--\; \; -->(x)=-<!--\; -\; -->7.65$, how do you find x?

let p be a prime number. if a group G has more than p-1 elements of order p, prove that G cannot be a cyclic group?

Write the number in scientific notation.
8,200,100

If is a binary operation defined by M$N= maximum of {M,N} or M max N, find the value of 15$20.

$\frac{3}{2y}-<!--\; -\; -->\frac{3}{2y+4}=$

Jack invests $1000 at a certain annual interest rate, and he invests another $2000 at an annual rate that is one-half percent higher. If he receives a total of $190 interest in one year, at what rate is the $1000 invested?

Solve.
${\log }_a<!--\; \; -->x+{\log }_a<!--\; \; -->(x-<!--\; -\; -->2)={\log }_a<!--\; \; -->(x+4)$

Solve:
$\frac{4}{7}(28x-<!--\; -\; -->35)=\frac{2}{3}(24x-<!--\; -\; -->30$

Given the equation a(b - c) = 3d, solve for c.

Find a polynomial P(x) with real coefficients having a degree 6, leading coefficient 5, and zeros 7, 0 (multiplicity 3) and 2 - 3i

Suppose that $x=\log <!--\; \; -->A$ and $y=\log <!--\; \; -->B$. i need to write these expressions in terms of x and y
$\log <!--\; \; -->(AB)$
$\log <!--\; \; -->(A^3\times <!--\; \times \; -->\sqrt{B})$
$\log <!--\; \; -->(A-<!--\; -\; -->B)$

Find all real or imaginary solutions to the equation.
$6x=-<!--\; -\; -->\frac{19x+25}{x+1}$

Solve the equation : $2y^2-<!--\; -\; -->3y-<!--\; -\; -->6=0$