Method that must be used is by substitution

Method that must be used is by substitution

So I tried doing the equation out and I got fractions for the ordered pairs. I got x=4/3 and y=20/3. Our teacher has us do checks so when I checked the problem out it didn't work out.

For this problem, I know how to solve it, but can't set it up. I have x+y=3000 0.70x+0.35y=(0.58)(300) but it's quite right. Thanks! A silversmith has two alloys,...

How tall is the statue? How tall is the building?

1=sqrt(x+sqrt(x+sqrt(x+sqrt(x+... Using a substition, it seems you can get 1=sqrt(x+1), but that leads to x=0, which seems wrong when you plug it back into the original equation...

Solve the following linear system (substitution) 2x-5y=12 x+10y=-9

The school that Anjali goes to is selling tickets to a play. On the first day of ticket sales the school sold 11 senior citizen tickets and 14 child tickets for a total of $211. The school took in...

Substitution finding x and y

Solve by substitution

I need help on a really hard problem it's substitution equations

y=-6x+21 -3x-3y=-18

Use substitution to solve the following system of equations: 4x-y=5 2x+3y=-8

Josie wants to buy Internet access. One service provider charged a flat rate of $34.95/month. A second charges $25/month plus $0.33/hour. For what number of hours per month should Josie choose the...

n 2000 the demand for nurses was 2000000 while the supply was only 1890000 the projected demand for nurses in 2020 is 2810414 while the supply is only projected to be 2001998 A) define the variables...

when integrating ∫sin3xdx, a good first move would be to: a) use u-substitution, letting u=sinx, and then integrating ∫u3du b) use u-substitution, letting u=sin2x c)...

When integrating ∫esinxcosdx, a good choice to use for your u-substitution would be which of the following: a) u=cosx b) u=sinx c) u=esinx

if the substitution √(x)=sin(y) is made into the integrand of (with the upper limit of: 1/2 and the lower limit of: 0) ∫ ( (√(x) )/( (√(1-x) )dx , the resulting integral is _______________...

The admission fee at an amusement park is $1.50 for children and $4 for adults. On a certain day, 302 people entered the park, and the admission fees collected totaled 828.00 dollars. How many children...

The admission fee at an amusement park is $1.50 for children and $4 for adults. On a certain day, 302 people entered the park, and the admission fees collected totaled 828.00 dollars. How many children...

3x-6y=2 4x+3y=-1

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