4,511 Answered Questions for the topic prealgebra

Prealgebra Math Algebra 1 Algebra 2

06/02/21

Math Question Help
1.Lisa needs a science mark of 90% to get into her college program. If her term mark is82% and it is worth 70% of her final mark, is it possible for her to achieve the 90%?
Follows • 1
Expert Answers •2
Prealgebra Math Algebra 1 Algebra 2

06/01/21

Math Question Help
The average daily rainfall for the first four days of May was 21 mm. On the first day itrained 15 mm, on the second day it rained 21 mm, and on the third day it rained 12 mm.How much did it rain on... more
Follows • 1
Expert Answers •1
Prealgebra Math Algebra 1 Algebra 2

05/31/21

A group of children were asked how many hours a day they spend watching television.
A group of children were asked how many hours a day they spend watching television. Determine the mean, mode, and median.
Follows • 1
Expert Answers •1

05/31/21

Math Question Help!
The formula for weighted mean is this, correct? ∑wx / ∑w
Follows • 1
Expert Answers •1
Prealgebra Math Algebra 1 Algebra 2

05/31/21

A company considers 5 things when hiring people.
A company considers 5 things when hiring people. Each applicant gets a score from 1 – 5 and each category has a weighting from 1 – 3 in terms of importance. Below is the result of one applicant’s... more
Follows • 1
Expert Answers •2
Prealgebra Math Algebra 1 Algebra 2

05/31/21

urgent help weighted mean
How to know when to use weighted mean in a question? And could someone explain the formula, and what it means please! Thank you so much.
Follows • 1
Expert Answers •3
Prealgebra Math Algebra 1 Algebra 2

05/31/21

urgent help Sample & Population Mean
How to know when to use sample or population mean? And could someone explain both formulas, and what they mean please!
Follows • 1
Expert Answers •1
Prealgebra Math Calculus Algebra

05/31/21

If f(x)=cos(3x) then f(π / 6)=
Follows • 1
Expert Answers •1
Prealgebra Math Algebra 1 Algebra 2

05/29/21

Urgent Help Which type of bias is the following?
a) A survey asks,What is your favorite flower: tulip, rose, or orchid?Is this measurement bias?
Follows • 1
Expert Answers •1
Prealgebra

05/28/21

Please Help Me Please
Nine times one less than a number is equal to three (algebraic expression)
Follows • 1
Expert Answers •2
Prealgebra Math Algebra 1 Algebra 2

05/28/21

Is this following data (numbers), discrete or continuous?
Is this following data (numbers), discrete or continuous?
Follows • 1
Expert Answers •1
Prealgebra Math Algebra 1 Algebra 2

05/26/21

I need some help solving this written equation. Please and thank you
If $1,800 is deposited into a bank account that earns 12% annual interest, compounded continuously, what is the amount in the account after 10 years, rounded to the nearest dollar? What formula... more
Follows • 1
Expert Answers •1
Prealgebra Math Maths Pre Algebra

05/26/21

Ravi bought 3 pens and 4 notebooks for $28. Lola bought 4 pens and 8 notebooks at the same store for $52. How much does one notebook cost
Follows • 1
Expert Answers •1
Prealgebra Math Algebra 1 Algebra 2

05/26/21

Is this equation exponential growth or decay?
Does the equation y=0.89^x represent exponential growth or exponential decay?
Follows • 1
Expert Answers •1
Prealgebra Math Algebra 1 Algebra 2

05/26/21

Urgent Help! A teacher creates a new blog about mathematics and statistics.
A teacher creates a new blog about mathematics and statistics. She collects data showing the number of pageviews in the first few months.d) Predict the number of pageviewsexpected in December.
Follows • 1
Expert Answers •1
Prealgebra Math Algebra 1 Algebra 2

05/26/21

Consider the equation: x^2-12x+20=0
Consider the equation: x^2-12x+20=0A) First, use the "completing the square" process to write this equation in the form(x+D)^2=E and enter your results below.x^2-12x+20=0 is equivalent to:Solve... more
Follows • 1
Expert Answers •1
Prealgebra Math Algebra 1 Algebra 2

05/26/21

Question, Describe the sampling method used.
a) A seat belt factory randomly selects a time each hour and then tests the next10 seat belts on the factory line.Would this be simple random or systematic? Please explain!
Follows • 1
Expert Answers •1
Prealgebra Math Algebra 1 Algebra 2

05/25/21

Histogram Question, Please Help!
Calculate the bin width that would make five intervals then make a frequency table and draw a histogram. Please also provide a good explanation.
Follows • 1
Expert Answers •1
Prealgebra

05/25/21

Vinny and Marc had $50 together. Marc had $9 more than Vinny. How much money did Vinny have?
Vinny and Marc had $50 together. Marc had $9 more than Vinny. How much money did Vinny have?
Follows • 1
Expert Answers •1

05/25/21

math help needed !!
25<k-10. Substitute 22 in for k. Is the number sentence true or false?  Which value will make the number sentence true?a) h = 10 b) h = 8 c) h = 4 d) h = 213= y6. Substitute 78 in for y. Is the... more
Follows • 1
Expert Answers •1

05/24/21

math help needed

Hunter wants to rent a jet ski while he and his family are in Florida for vacation. It costs $10 an hour to rent one of the jet skis.  Make a table showing the total cost for renting the jet ski... more
Follows • 2
Expert Answers •2

05/24/21

Inequality question help meeded!

Hello, I am struggling with these question that I am becoming cross eyed I dont understand. I watch khan academy still unsure can someone help me . Question: write an inequality and graph the... more
Follows • 2
Expert Answers •2

05/24/21

I dont understand! What is this question asking ?

Substitute 22 in for k. Is the number sentence true or false ? Subsitite 78 in for y. Is the number sentence true or false
Follows • 2
Expert Answers •2
Prealgebra Math Algebra 1 Algebra 2

05/24/21

One step equation i dont understand!
I need help and good explanation for "one step equation And one step inequalities 5n=40 (asking for one step equation) X=10( one step equation ) One step inequalities 2n<24X- 7 4 9>
Follows • 1
Expert Answers •1
Prealgebra Math Algebra 1 Algebra 2

05/24/21

good explanation needed ! i need help solving this question

Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.