4,511 Answered Questions for the topic prealgebra

Prealgebra Math Science Algebra 1

05/05/23

Distance rate, time algebra

The distance traveled by a car traveling at a constant speed is directly proportional to the time spent traveling. If the car went 910 miles in 13 hours, how far will it go in 14 hours?
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Prealgebra Math Algebra 1 Algebra 2

05/05/23

Intrest money, prealgebra

David deposited $10,000 in an account that pays 5 percent interest compounded annually. Using a calculator and the formula An = A0* (1 + r) n determine how much money had been earned after the... more
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Prealgebra

05/05/23

In a two-digit number, the tens digit is twice the ones digit. The difference of the ones digit and half the tens digit is 0. find an equation to find the digit in the ones place

will the question have one solution no solution or many solutions
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Prealgebra Math

05/05/23

the length of a rectangle is 5 times its width. If the perimeter is 60 what is the area?
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Prealgebra Math Science Algebra 1

05/03/23

Distance rate and time

Sally left the city for vacation. Dan left 8 hours later going 40 mph faster to catch up. After 7 hours Dan caught up. What was Sally's average speed?
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Prealgebra Math Science Algebra 1

05/03/23

Distance, rate, and time

A cargo plane flew from the US across the Atlantic at two hundred seventeen mph, and flew back to the US at two hundred thirty-seven mph. Given that the first trip took two hours longer, how long... more
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Prealgebra Math Science Algebra 1

05/03/23

Distance, rate, and time
Alyssa left downtown Houston, and three hours later, Joan left going 54 mph faster to catch up. After another two hours, Joan caught up. Find Alyssa's average speed.
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Prealgebra Math Science Algebra 1

05/03/23

Distance, rate, and time
Melanie left Greensboro traveling sixty-nine mph. Sally, to catch up, left some time later driving at seventy-eight mph. Sally caught up after three hours. How long was Melanie driving before Sally... more
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Prealgebra Math Science Algebra 1

05/03/23

Distance, rate, and time
Jessica traveled to burbank by car. Going there took 5 hours, and the return trip lasted 8 hours. Jessica averaged a speed of 53 mph while returning. Find the average speed of the trip there.
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Prealgebra Math Science Algebra 1

05/02/23

Coin word equation

Michelle has a purse that contains 7 silver coins and 5 gold coins. She draws one coin at random and then draws a second coin. What is the probability that the first coin is gold and the second... more
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Prealgebra Math Science Algebra 1

05/02/23

Money word equation

During the sale, the price of the used car was marked down 10 percent. If the sale price of the used car was $1800, what was the price of the used car originally?
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Prealgebra Math Science Algebra 1

05/02/23

Money word equation

Gerald peered into his wallet and found $270 in $10 and $20 bills. If there were 6 more $10 bills than $20 bills, how many of each did he have?
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Prealgebra Math Science Algebra 1

05/02/23

Word equation, algebra one
A northbound train left at midnight. Three hours later, a southbound train left the same station. At 6 a.m. the two trains were 330 miles apart. Find the rate of each train if the northbound train... more
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04/29/23

Algebra Question. (Two-way) Concept.
If -24 = 3(1+r) what is the value of 7(1+r) I am practicing for the SAT on Khan Academy, and this was one of the questions that showed up. The answer I got was -56, which was the correct answer,... more
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Prealgebra Math Algebra 1 Algebra 2

04/28/23

Finding consecutive integers
Find four consecutive odd integers such that three times the sum of the first and second is 15 less than the fourth.
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04/28/23

Money word problem

Christopher's piggy bank contained $7.40 in nickels and pennies. If there were 80 more pennies than nickels, how many of each did he have in the piggy bank?
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Prealgebra Math Science Algebra 1

04/28/23

Probability word problem
Sonal has a jar that contains 6 blue marbles and 5 violet marbles. She randomly draws one marble and then draws another marble. What is the probability of drawing two violet marbles if the marbles... more
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04/28/23

Distance word problem

Aaron and Jessica walked to the dock at 2 miles per hour, jumped into the boat, and motored to Denver at 46 miles per hour. If the total distance was 21 miles and the trip took 5 hours in all, how... more
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Prealgebra Math Science Algebra 1

04/27/23

Finding consecutive numbers, algebra

Find four consecutive even integers such that if the sum of the first and third is multiplied by 3, the result is 28 less than five times the fourth.
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Prealgebra Math Science Algebra 1

04/27/23

Finding consecutive numbers, algebra

Find four consecutive even integers such that if the sum of the first and third is multiplied by 3, the result is 28 less than five times the fourth.
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04/27/23

Word equation, algebra 1
The 70-foot rope was cut into two pieces. One of the pieces was 10 feet longer than three times the length of the other piece. How long was each piece?
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Prealgebra Math Science Algebra 1

04/27/23

Speed equation, algebra 1
At 7 a.m. gene left Austin and headed south at 10 miles per hour. At 8 a.m. Anne left from the same place and headed south on the same road. If Anne was 60 miles ahead by 3 p.m. on the same day,... more
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Prealgebra Math Science Algebra 1

04/26/23

Percentage equation, algebra 1

Forty percent of the voters chose Shane. If 540 voters chose the other candidates, how many voters were there?
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04/26/23

Money word equation, algebra 1
Wendy had $10.60 in dimes and quarters. If she had a total of 94 dimes and quarters, how many of each type of coin did she have
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04/26/23

Word equation, dice
Deborah rolls two fair dice. What is the probability that the sum of the numbers is 7?
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