I have to solve this with 2 equations. How should I do that?

I have to solve this with 2 equations. How should I do that?

What is the vertex of the graph of y + 2x + 3 = –(x + 2)2 + 1?

Solve the system. −2x+12y+2z=−21 −x+y−4z=8 1/3x+2y+4z=-18

Word problem for Algebra 2

The governor of State A earns $49,765 more than the governor of State B If their total salaries is $288,035 find the salaries of each

A carpenter purchased 70 ft of redwood and 90 ft of pine for a total cost of $362. A second purchase, at the same prices, included 90 ft of redwood and 50 ft of pine for a total cost of $380. Find...

A merchant mixed 10 lb of a cinnamon tea with 4 lb of spice tea. The 14-pound mixture cost $37. A second mixture included 14 lb of the cinnamon tea and 12 lb of the spice tea. The 26-pound mixture...

During one month, a homeowner used 700 units of electricity and 100 units of gas for a total cost of $432. The next month, 500 units of electricity and 150 units of gas were used for a total cost...

A chemist has two alloys, one of which is 15% gold and 10% lead and the other which is 30% gold and 50% lead. How many grams of each of the two alloys should be used to make an alloy that contains...

A pharmacist has two vitamin-supplement powders. The first powder is 20% vitamin B1 and 30% vitamin B2. The second is 15% vitamin B1 and 10% vitamin B2. How many milligrams of each powder should the...

In completing the square they use b/2 and I was wondering if it was in anyway related to -b/2a.

In completing the square they use b/2 and I was wondering if it was in anyway related to -b/2a.

Need to know how much time it would take for them to finish the job, working as a team. In the fraction form.

how many three hour and how many four hour classes were paid for?

6 -6 3 18

19/15 17/12 17/15 16/15

$4500 /1 part $1100 /1 part $1050 /1 part $1500/1 part

Butch Err owns a feedlot on which he fattens up cattle for market by feeding them a mixture of corn and pellets. He wants to find what mixture of corn and pellets will give the minimum feasible cost...

solve for h

please help me out on this