4,511 Answered Questions for the topic prealgebra

Prealgebra

01/08/20

7th grade math problem

darden has $35. He finds a backpack on sale for 35% off the regular price of $43.99. Does Darden have enough to buy the backpack?
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Prealgebra Math Algebra 1 Algebra 2

01/07/20

Compare the slopes and y- intercepts of the graphs of the equations in the linear system to determine whether the system has one solution, no solution, or infinitely many solutions.

x = -3y + 28 x + 4y =36 2x + 3y = 11 -4x - 6y = -22
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Prealgebra Math Algebra 1 Algebra 2

01/07/20

Write an expression that you can substitute for x in the top equation of the system below to solve the system by substation.
5x - 2y = 8x - y = 1
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Prealgebra Math

01/06/20

Inequalities and logical statements: In a mathematical system, the following two statements relating to real number values for a, b, c, and d are (always) true: a < b and c < d .
Then, Which of the following four statements are therefore always true:I) (a + c) < (b + d) II) |a – c| < |b – d| III) ac < bd IV)... more
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Prealgebra Math Algebra 1 Algebra 2

12/29/19

rocket maximum question
The path of a rocket is given by the function, h(t) = -3t2 + 30t + 73, where 'h' is the height in meters and 't' is the time in secondsa. what is maximum height of rocketb. at what time does rocket... more
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Prealgebra

12/27/19

Substitution math problem

Whitney has a coin jar with a small collection of nickels and dimes. There are 69 coins in a the jar. They have a value of $5.90. How many Nickels and dimes are in the jar? I need help with work... more
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Prealgebra

12/26/19

need help with this math problem
Solve using your choice of graphing, substitution, or elimination4x-3y=-193x-2y=24
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Prealgebra

12/26/19

I need help with graphing

Find the equation of the line (1,4) and (3,-2) in slope intercept form and graph
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Prealgebra

12/26/19

Graphing mathematics question

Graph by completing a table of x and y values to find least three points on the line 2x-4y=20 algebraically
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Prealgebra 6th Grade Math

12/24/19

Peter bought 8 lemons for $6 how much does each lemon cost?
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Prealgebra Math Algebra 1 Algebra 2

12/23/19

Polynomial problems
Find all real zeros of the polynomials and determine the multiplicity of each. (solve by factoring)f(x) = x3 - 6x2 - 9x + 54f(x) = x4 + 5x3 + 6x2
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Prealgebra Proportions

12/21/19

a boat can travel 384 miles on 32 gallons of gasoline. how gar can it travel on 12 gallons?
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Prealgebra

12/20/19

A restaurant chef needs 8^ lb of salmon. To get a good price, he buys more than he needs. He ends up with 4 7 over 8 lb too much. How much salmon did he buy?
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Prealgebra

12/20/19

equation to determine the number of minutes (t)(t)left parenthesis, t, right parenthesis that Raymond was on the trampoline.
equation to determine the number of minutes (t)left parenthesis, t, right parenthesis that Raymond was on the trampoline.
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Prealgebra

12/19/19

division and multiplication

Jenny has $25 and earns $10 for each lawn that she mows.Jenny wants to buy a concert ticket that costs $115.Enter the minimum number of lawns Jenny needs to mowto be able to buy the concert ticket.
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Prealgebra

12/18/19

Given the perimeter of a rectangle and either the length or​ width, find the unknown measurement using the appropriate formula. The perimeter is 72 ft. and the width is 17 ft.
help asap i need help for a ixl that is due to to get my grade up any answers?
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Prealgebra

12/17/19

Unit rates & proportions
If 4 pounds of apples cost five dollars what is the cost per pound
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Prealgebra

12/17/19

seven times a number is equal to 12 more than 3 times the number.
It's a word problem.I'm in 8th grade and its a worksheet
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Prealgebra

12/17/19

You want an MP3 player that costs $129. If sales tax is 7%, what will be your total, t? Write an equation.
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Prealgebra

12/17/19

A furniture store advertises a 40% off liquidation sale on all items. What would the sale price be, p, on a $2530 dining room set? Write an equation.
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Prealgebra

12/17/19

28% of the employees at the tire factory are women. If there are 500 employees, how many are women, w? Write an equation
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Prealgebra

12/16/19

I'm not to sure what to do in general in this question i have here like i don't even know what equation to use
A diagonal short cut across a rectangular parking lot is 152 yards. The length of the parking lot is 125 yards. Which best describes the width of the parking lot?
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Prealgebra

12/15/19

The sum of 2 numbers is 58. If the larger number is 10 less than 3 times the smaller number, find both numbers.
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12/13/19

I need help with solving this math problem too.

Your brother is  your age. Your sister is 4 years older than your brother. Your sister is 9 years old. Write and solve an equation to find your age.
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Prealgebra

12/10/19

in 2009 i had 113 students on my team, in 2011, i only had 75. what was the percent decrease
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