150 Answered Questions for the topic Substitution Method

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Mohammed and Ali are selling pies for a fundraiser Mohammed sold 3 small pies and 11 large pies for a total of 203 Ali sold 11 small pies and 11 large pies for a total of 220 Determine the cost... more

How do I solve the system by the method of substitution?

Solve {-x-y=-7, x^2-y=-5

Substitution Method Equation

Can someone please solve this ASAP? Thanks :)(I need a larger and a smaller number)"The sum of two numbers is 45. The larger number is 9 more than the smaller number. What are the numbers?"

Use substitution and elimination method.

Substitution: y=x2-6x+9                      y+x=5     Elimination: y=x2-11x-36                   y=-12x+36

please can u show me step by step how to answer this question

Josie wants to buy Internet access. One service provider charges a flat rate of $34.95/month. A second charges $25/month plus 33 cents/h. For what number of hours per month should Josie choose the... more

Find the value of X and Y.

At a college bookstore, Carla purchased a math textbook and a novel that cost a total of $54, not including. If the price of the math textbook, m, is $8 more that 3 times the price of the novel, n,... more

how much does he have in each account if he earned a total of $1,230 in interest in 1 year?

Mr. Wilson invested money in two accounts. His total investment was $30,000. If one account pays 6% in interest and the other pays 3% in interest, how much does he have in each account if he earned... more

Substitution Method Help

How do you use the substitution method for this problem? It's: 2x-1/2y=-3 and x/5+2y=19/5. The slashes signify that they are fractions.

Bag of Nickles and Quarters

Maricella has a bag containing 35 nickles and quarters. The total value of these coins is less than $2.50. What is the maximum number of quarters that meets these conditions? Im doing a math... more

Use substitution method to solve the following system of equations. y = 2x -3 x + y = 1

Use substitution method to solve the following system of equations.y = 2x -3x + y = 1

solve by substitution

5x-4y=9 x-2y=-3

y=6x and 2x+3y=-20

have to use substitution 

I want to know how many first class tickets did she buy and how many coach tickets did she buy

Sarah took the advertising department for her company on a round trip to meet with a potential client. Including Sarah a total of 13 people took the trip. She was able to purchase coach tickets for... more

Determine the cost of one desk and one chalkboard

35 desks and 3 chalkboards cost $2082 40 desks and 2 chalkboards cost $2238

-8x + 5y = -6 and -3x + y = -4

How do you solve this by using the method of substitution? I need to know what x and what y is. 

How do you solve y=2x-2 and y=x+2 using substitution?

Use substitution to solve.

how do I turn a word problem into an equation

recall that two angles are complementary if the sum of their measures is 90 degrees. find the measures of two complementary angles is one angle is eight times the other angl

juan is trying to decide which parking garage to use

Bargain garage charges a flat fee of $2 plus $4 per hour. Grey's garage charges a flat fee of $8 plus $2 per hour. For how many hours will the cost of parking in either garage be the same, and what... more

Tara wants to buy a charm bracelet. Wildgrove Fine Jewelry charges $14 per charm, plus $31 for the bracelet. Nelson Jewelers, in contrast, charges $15 per charm

Tara wants to buy a charm bracelet. Wild grove Fine Jewelry charges $14 per charm, plus $31 for the bracelet. Nelson Jewelers, in contrast, charges $15 per charm and $28 for the bracelet. If Tara... more

Substitution/ System of Equations help?

A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 35% salt and Solution B is 95%salt. She wants to obtain 180 ounces... more

Am I doing this right?

Kai takes off from parking structure 1 at 3:00 PM, driving north. One hour later, Jacob takes off from parking structure 1, too,  but he had south, and his speed is 15 mph more than Kai's. At... more

how much does one donut and one cup of coffee cost

On Monday, Harold picked up four donuts and two large coffees for the office staff. He paid $4.66. On Tuesday, Melinda picked up five donuts and five large coffees for the office staff. She paid... more

how much does one cup of coffee cost and how much does one donut cost

on monday harold picked up four donuts and two large coffees for the office staff. he paid $4.66. on tuesday melinda picked up five donuts and five large coffees for the office staff. she paid... more

Use substitution to solve the system

3x+4y=-8, y=2x +9

linear systems using the substitution method??

6x=3y+2y-2x+4=0
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