153 Answered Questions for the topic Substitution Method

Substitution Method

09/27/15

A rectangle has a perimeter of 58 inches. Find the dimensions of the rectangle if the length is 3 inches more than the width
Using the substitution method
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09/05/15

How much should she allocate to each investment in order for the yearly incomes from them to be the same?
the lottery winner who is going to invest in utility bonds and a savings account using the following data: Assume that her total winnings are $ 200000, that the utility bonds will pay 3 percent per... more
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09/05/15

In how many years will the sales of the two companies be equal? What will be the sales of each company when they are equal?
about the sales of the ABC and XYZ companies using following data: Assume that the ABC company has sales of 4670000 dollars and it's sales are growing at a rate of 30000 dollars per year. Assume... more
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09/02/15

solve for x and y
x+3y=7 6x+21y=51
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09/02/15

solve for x and y
x+y=-1 x+2y=0
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09/02/15

solve for both x and y
x+4y=-1 12x+51y=-12
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09/02/15

solve for y
x-2y=5 x-2y=5
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09/02/15

solve for y
x-2y=3 3x-6y=9
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Substitution Method Algebra System Of Equations

08/16/15

Algebra-System of equations
  x=2y 3x+4y=20   Solve the system of equations using substitution
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Substitution Method Exponents Rules

07/20/15

Find the expression equivalent to the one given x+14/x-9
1.use synthetic division to divide 25x^3+25x+5x-6 divide x+4/5   2. Find the expression equivalent to the one given x+14/x-9   3. Use the rules of exponent to simplify the... more
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Substitution Method

07/15/15

How many liters of each solution should be used?
A chemist has three different acid solutions. The first acid solution contains 25% acid, the second contains 40% and the third contains 60%. He wants to use all three solutions to obtain a mixture... more
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Substitution Method

07/15/15

If the annual income from the investments is $ 11035 , how much was invested in each account?
Maricopa's Success scholarship fund receives a gift of $ 185000. The money is invested in stocks, bonds, and CDs. CDs pay 3.5 % interest, bonds pay 5 % interest, and stocks pay 11.9 % interest.... more
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Substitution Method

07/15/15

Jolene invests her savings in two bank accounts, one paying 4 percent and the other paying 10 percent simple interest per year.
Jolene invests her savings in two bank accounts, one paying 4 percent and the other paying 10 percent simple interest per year. She puts twice as much in the lower-yielding account because it is... more
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06/16/15

A green turtle lays 12 times as many eggs as an ostrich. If the sum of the eggs laid is 975, how many did each lay?
Define two variables. Then write equations. Quantity-rate equations may be helpful. Use either the elimination method or the substitution method to solve the equations.   A green turtle lays 12... more
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Substitution Method Elimination Method

06/12/15

Elimination Method and Substitution method
Substitution: 3x+10y=1                        x+2y=-1     Elimination: 3/4x + 5/3y = 11                   1/16x - 3/4y = -1
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Substitution Method

05/26/15

Substitution Math
Adult tickets to the fall play cost $8 and student tickets cost $4. The drama class sold 20 more adult tickets than student tickets to the fall play. If the class collected $880 from ticket sales,... more
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05/04/15

A store sold 32 pairs of jeans for a total of $1050. Levi's sold for $30 and Wrangler's sold for $35 how much of each pair sold?
 This must be solved by linear combinations or substitution.
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Substitution Method Addition Method

04/29/15

DJ A service charges a $200 setup fee and $75 an hour after that. DJ B service chargers no setup fee but costs $125 an hour
Set up equations for both of the services using x and y. determine the variable and provide an explanation for why you chose what you did,   Solve the system using the graphing method. graph the... more
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Substitution Method Word Problem Equations Word Problems

04/29/15

Help with this word problem please
A chef is using a mixture of two brands of Italian dressing. The first brand contains 5% vinegar, and the second brand contains 15% vinegar. The chef wants to make 390 milliliters of a dressing... more
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Substitution Method

03/30/15

x+5y=9 2x+3y=5
 use the substitution method, to substitue the x next to the 2 in the second equation with x=5y+9
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Substitution Method

03/29/15

solve substitution method
y=x^2 y-7x=-12
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Substitution Method

03/26/15

Which company should she use if she wants to minimize the cost?
The red cab company charges $3.50 upon entry and an additional $1.25 per mile driven. The yellow cab company charges $5 upon entry and an additional $1.15 per mile driven. Use the graphing method,... more
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Substitution Method

03/24/15

If the total receipts for the day were $891.25, how many of each kind of ticket were sold?
The owner of a movie theater was counting the money from one day's ticket sales. He knew that a total of 150 tickets were sold. Adult tickets cost $7.50 each and children's tickets cost $4.75 each.
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Substitution Method Substitution

03/19/15

Substation
X+2y=8 2x-3y=2  
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02/24/15

The value of your EFG stock is three times the value of your PQR stock. If the total value of the stocks is $4500, how much is invested in each company?
The equations that are first gotten should be a linear system. If it could be solved using the substitution method, that's be great! Thanks.
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