4,511 Answered Questions for the topic prealgebra

Prealgebra

10/24/20

I need help with this problem
A truck's odometer reads 17,984.9 miles at the beginning of a trip and 18,255.5 miles at the end. If the trip takes 15 gallons of gas, what is the gas mileage in miles per gallon? (Round to the... more
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Prealgebra

10/24/20

Helppppppppppppp
Find the unit price in cents per diaper for each of the brands shown below. Round to the nearest tenth of a cent.Brand A: 20 Diapers, $6.99:  ¢ per diaper   Brand B: 45 Diapers, $11.99:  ¢ per... more
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Prealgebra

10/24/20

Please help, very stuck

A 20-ounce package of frozen peas costs $1.11. Give the unit price in cents per ounce. Round to the nearest tenth of a cent.
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Prealgebra

10/23/20

21 – (13 +4) = y +18
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Prealgebra

10/22/20

Agebra question what is y+6= 6 -20
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Prealgebra

10/22/20

Ratio , as a fraction in lowest terms
Write the ratio: 0.26 to 0.78 as a fraction in lowest terms.
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Prealgebra

10/22/20

Need help with math
Write the ratio: 2 2/5 to 6/5 as a fraction in lowest terms.
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Prealgebra Math

10/22/20

Help me please!
Write the ratio: 414 to 314 as a fraction in lowest terms.
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Prealgebra

10/21/20

Find the slope of the line that passes through (5, 3) and (3, 6). Simplify your answer and write it as a proper fraction, improper fraction, or integer.
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Prealgebra

10/21/20

Trying to find unit rate
kenny reads 5/8 pages in 2/3 minutes what is the unit rate ?
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Prealgebra

10/20/20

On Tuesday Wilbur bought eight posters. On Wednesday half of all the posters that he had were destroyed. On Thursday there were only 17 left. How many did he have on Monday?
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Prealgebra

10/20/20

Th e formula for the volume of a cylinder is V = πr 2 h, where r is the radius of the circular base and h is the height of the cylinder.
a. Solve the formula for h.b. Use the new formula to find the height of the cylinder.Note: please answer this in order as an 8th grade problem
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Prealgebra

10/17/20

If 𝑓(𝑥) = 𝑥/12, then find 𝑥 when 𝑔(𝑥) = 12
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10/16/20

a varies directly as b and inversely as the square of c
If a = 229 when b = 4 and c = 2, find a if b = 6 and c = 5Round your answer to two decimal places if necessary.
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10/16/20

T={(2,4),(−5,1),(2,0),(2,−2)}
determine if the relation is a function. If it is not, identify two ordered pairs as proof.
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Prealgebra Precalculus

10/16/20

Find two points on the graph of the parabola other than the vertex and x-intercepts.
r(x)=x2+4x+3A: (___,___)B: (___,___)
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Prealgebra Precalculus

10/16/20

Find the x-intercepts, if any. Express the intercept(s) as ordered pair(s).
r(x)=x2 + 4x + 3How many x-intercepts does this function have?
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Prealgebra Precalculus

10/16/20

Find two points on the graph of the parabola other than the vertex and x-intercepts.
r(x)=x2+8x+15A: (_____,_____)B: (_____,_____)
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Prealgebra Precalculus

10/16/20

Find the x-intercepts, if any. Express the intercept(s) as ordered pair(s).
Find the x-intercepts, if any. Express the intercept(s) as ordered pair(s).r(x)=x2+8x+15How many x-intercepts does this function have?
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Prealgebra

10/16/20

Lost tooth find inequality

Norah has never lost a tooth,but she will receive $0.75 form the tooth fairy each time she loses a tooth. Kate as 1.25 from the tooth fairy and she gets $0.25 each time she Loses a tooth what is... more
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Prealgebra

10/16/20

Video games math
A video game store allows customers to rent games for 4.75 each customers can also buy a membership for $54 annually and video games would only cost $2.50 each write and solve an equation to find... more
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10/16/20

Algebra questions

The hyperbola is given by equation 4x2 – 9y2 + 32x + 54y – 53 = 0. Find the coordinates of the center, the foci, the eccentricity and the asymptotes of the hyperbola.
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10/16/20

Algebra questions

Solve the system using a matrix equation. Explain each step.5x – 4y = 43x – 2y = 3
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10/16/20

Algebra questions

Find the sum of the first 19 terms of the sequence 9, 2, -5, -12, .... Explain each step.
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10/16/20

Algebra questions

A buoy bobs as the waves go past. The vertical displacement of the buoy with the respect to sea level can be modeled by y = 1.75 cos(pi/3) , where t is the time in seconds. Find the amplitude and... more
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