|
Tutors Answer Your Questions about Numeric Fractions (FREE)
Question 170087: Hello HI My Name is Chennae Richardson and I really need all the help i could get in Pre-Algedra so I was asking if you can be my own tutor please because i really need help in getting my grades up thats all I was asking THANK YOU: Hello HI My Name is Chennae Richardson and I really need all the help i could get in Pre-Algedra so I was asking if you can be my own tutor please because i really need help in getting my grades up thats all I was asking THANK YOU
Click here to see answer by Alan3354(1449)  |
Question 170024: Barn painting. Melanie can paint a certain barn by herself
in x days. Her helper Melissa can paint the same barn by
herself in 2x days. Write a rational expression for the fraction
of the barn that they complete in one day by working together. Evaluate the expression for x 5.: Barn painting. Melanie can paint a certain barn by herself
in x days. Her helper Melissa can paint the same barn by
herself in 2x days. Write a rational expression for the fraction
of the barn that they complete in one day by working together. Evaluate the expression for x 5.
Click here to see answer by ankor@dixie-net.com(4538) |
Question 170025: Commuting students. At a well-known university, 1/4 of the undergraduate students commute, and 1/3 of the graduate students commute. One-tenth of the undergraduate students drive more than 40 miles daily, and 1/6 of the graduate
students drive more than 40 miles daily. If there are twice
as many undergraduate students as there are graduate
students, then what fraction of the commuters drive more
than 40 miles daily?
: Commuting students. At a well-known university, 1/4 of the undergraduate students commute, and 1/3 of the graduate students commute. One-tenth of the undergraduate students drive more than 40 miles daily, and 1/6 of the graduate
students drive more than 40 miles daily. If there are twice
as many undergraduate students as there are graduate
students, then what fraction of the commuters drive more
than 40 miles daily?
Click here to see answer by ankor@dixie-net.com(4538) |
Question 170022: Toxic pollutants. The annual cost in dollars for removing
p% of the toxic chemicals from a town’s water supply is
given by the formula
C(p)=500,000/100-p
.
a) Use the accompanying graph to estimate the cost for
removing 90% and 95% of the toxic chemicals.
b) Use the formula to find C(99.5) and C(99.9).
c) What happens to the cost as the percentage of
pollutants removed approaches 100%?: Toxic pollutants. The annual cost in dollars for removing
p% of the toxic chemicals from a town’s water supply is
given by the formula
C(p)=500,000/100-p
.
a) Use the accompanying graph to estimate the cost for
removing 90% and 95% of the toxic chemicals.
b) Use the formula to find C(99.5) and C(99.9).
c) What happens to the cost as the percentage of
pollutants removed approaches 100%?
Click here to see answer by checkley77(3654) |
Question 170023: Driving marathon. Felix drove 800 miles in x hours on
Monday.
a) Write a rational expression for his average speed.
b) On Tuesday he drove for 6 hours at the same average
speed. Write a rational expression for his distance on
Tuesday.
: Driving marathon. Felix drove 800 miles in x hours on
Monday.
a) Write a rational expression for his average speed.
b) On Tuesday he drove for 6 hours at the same average
speed. Write a rational expression for his distance on
Tuesday.
Click here to see answer by checkley77(3654) |
Question 170026: Toxic pollutants. The annual cost in dollars for removing
p% of the toxic chemicals from a town’s water supply is
given by the formula
C(p) = 500,00/ 100-p
.
a) Use the accompanying graph to estimate the cost for
removing 90% and 95% of the toxic chemicals.
b) Use the formula to find C(99.5) and C(99.9).
c) What happens to the cost as the percentage of
pollutants removed approaches 100%?: Toxic pollutants. The annual cost in dollars for removing
p% of the toxic chemicals from a town’s water supply is
given by the formula
C(p) = 500,00/ 100-p
.
a) Use the accompanying graph to estimate the cost for
removing 90% and 95% of the toxic chemicals.
b) Use the formula to find C(99.5) and C(99.9).
c) What happens to the cost as the percentage of
pollutants removed approaches 100%?
Click here to see answer by checkley77(3654) |
Question 169905: please help!!! simplify showing your steps 1 over 4 (1.4) + (-4+4)
: please help!!! simplify showing your steps 1 over 4 (1.4) + (-4+4)
Click here to see answer by Alan3354(1449) |
Question 169531: comparing fractions using a number line 9/10, 1/4, -5/9, 8/10
---------
-5/9 is furthest to the left on the number line.
---------------
1/4 is to the left of 8/10 which is to the left of 9/10
---------------
Cheers,
Stan H.: comparing fractions using a number line 9/10, 1/4, -5/9, 8/10
---------
-5/9 is furthest to the left on the number line.
---------------
1/4 is to the left of 8/10 which is to the left of 9/10
---------------
Cheers,
Stan H.
Click here to see answer by stanbon(19016) |
Question 169551This question is from textbook
: comparing fractions using a number line 4/5,2/3,8/9,9/12 thank youThis question is from textbook
: comparing fractions using a number line 4/5,2/3,8/9,9/12 thank you
Click here to see answer by checkley77(3654) |
Question 169677This question is from textbook
: Barn painting. Melanie can paint a certain barn by herself
in x days. Her helper Melissa can paint the same barn by
herself in 2x days. Write a rational expression for the fraction
of the barn that they complete in one day by working
together. Evaluate the expression for x = 5.This question is from textbook
: Barn painting. Melanie can paint a certain barn by herself
in x days. Her helper Melissa can paint the same barn by
herself in 2x days. Write a rational expression for the fraction
of the barn that they complete in one day by working
together. Evaluate the expression for x = 5.
Click here to see answer by scott8148(2761) |
Question 169676: Barn painting. Melanie can paint a certain barn by herself
in x days. Her helper Melissa can paint the same barn by
herself in 2x days. Write a rational expression for the fraction
of the barn that they complete in one day by working
together. Evaluate the expression for x = 5.: Barn painting. Melanie can paint a certain barn by herself
in x days. Her helper Melissa can paint the same barn by
herself in 2x days. Write a rational expression for the fraction
of the barn that they complete in one day by working
together. Evaluate the expression for x = 5.
Click here to see answer by Mathtut(558) |
Question 169681: Commuting students. At a well-known university, 1/4 of the undergraduate students commute, and 1/3 of the graduate students commute. One-tenth of the undergraduate students drive more than 40 miles daily, and 1/6 of the graduate
students drive more than 40 miles daily. If there are twice
as many undergraduate students as there are graduate
students, then what fraction of the commuters drive more
than 40 miles daily?
: Commuting students. At a well-known university, 1/4 of the undergraduate students commute, and 1/3 of the graduate students commute. One-tenth of the undergraduate students drive more than 40 miles daily, and 1/6 of the graduate
students drive more than 40 miles daily. If there are twice
as many undergraduate students as there are graduate
students, then what fraction of the commuters drive more
than 40 miles daily?
Click here to see answer by Mathtut(558) |
Question 169675: 82. Driving marathon. Felix drove 800 miles in x hours on
Monday.
a) Write a rational expression for his average speed.
b) On Tuesday he drove for 6 hours at the same average
speed. Write a rational expression for his distance on
Tuesday.
: 82. Driving marathon. Felix drove 800 miles in x hours on
Monday.
a) Write a rational expression for his average speed.
b) On Tuesday he drove for 6 hours at the same average
speed. Write a rational expression for his distance on
Tuesday.
Click here to see answer by stanbon(19016) |
Question 168795: How do i ture fractions into decimals
like for example im confused of this one
-14/5: How do i ture fractions into decimals
like for example im confused of this one
-14/5
Click here to see answer by stanbon(19016) |
Question 168793: Maria left the starting line at 8:30 am and drove at an average rat of 40 mi hour. what time did she arrive at checkpoint 1?: Maria left the starting line at 8:30 am and drove at an average rat of 40 mi hour. what time did she arrive at checkpoint 1?
Click here to see answer by Mathtut(558) |
Question 168569: Hello,
I have solved this question and compared to another student, and we had different answeres. I've done it again, and got the same answer as before. Could you please confirm that it is correct, or help me solve it corectly? Thank you in advance.
[(12x^3)/5)] / [(4x^2)/(10(y+3)]
= [(12x^3)/5y] x [(10(y+3))/(4x^2)]
= [(12x^3)/5y] x [(10y+30)/(4x^2)]
= [3x(10y+30)] / 5y
= [(30xy+90x)] / 5y
= [(6xy+18x)] / y
: Hello,
I have solved this question and compared to another student, and we had different answeres. I've done it again, and got the same answer as before. Could you please confirm that it is correct, or help me solve it corectly? Thank you in advance.
[(12x^3)/5)] / [(4x^2)/(10(y+3)]
= [(12x^3)/5y] x [(10(y+3))/(4x^2)]
= [(12x^3)/5y] x [(10y+30)/(4x^2)]
= [3x(10y+30)] / 5y
= [(30xy+90x)] / 5y
= [(6xy+18x)] / y
Click here to see answer by stanbon(19016) |
Question 168572: I have anothe question that didn't match when I compared to someone else. Could you please check to see if this is correct?
Thank you,
Jane: I have anothe question that didn't match when I compared to someone else. Could you please check to see if this is correct?
Thank you,
Jane
Click here to see answer by Edwin McCravy(2087) |
Question 168341: Demand for pools. Tropical Pools sells an aboveground
model for p dollars each. The monthly revenue for this
model is given by the formula
R(p)= -0.08p2 + 300p.
Revenue is the product of the price p and the demand
(quantity sold).
a) Factor out the price on the right-hand side of the
formula.
b) Write a formula D(p) for the monthly demand.
c) Find D(3000).
d) Use the accompanying graph to estimate the price at
which the revenue is maximized. Approximately how
many pools will be sold monthly at this price?: Demand for pools. Tropical Pools sells an aboveground
model for p dollars each. The monthly revenue for this
model is given by the formula
R(p)= -0.08p2 + 300p.
Revenue is the product of the price p and the demand
(quantity sold).
a) Factor out the price on the right-hand side of the
formula.
b) Write a formula D(p) for the monthly demand.
c) Find D(3000).
d) Use the accompanying graph to estimate the price at
which the revenue is maximized. Approximately how
many pools will be sold monthly at this price?
Click here to see answer by stanbon(19016) |
Question 168339: Area of a painting. A rectangular painting with a width of
x centimeters has an area of x2 + 50x square centimeters.
Find a binomial that represents the length. See the accompanying
figure.
200
100
Surface area (in.^2) 0
1 2 3
Radius (inches)
: Area of a painting. A rectangular painting with a width of
x centimeters has an area of x2 + 50x square centimeters.
Find a binomial that represents the length. See the accompanying
figure.
200
100
Surface area (in.^2) 0
1 2 3
Radius (inches)
Click here to see answer by Mathtut(558) |
Question 168340: Amount of an investment. The amount of an investment
of P dollars for t years at simple interest rate r is given by
A = P + Prt.
a) Rewrite this formula by factoring out the greatest
common factor on the right-hand side.
b) Find A if $8300 is invested for 3 years at a simple
interest rate of 15%.: Amount of an investment. The amount of an investment
of P dollars for t years at simple interest rate r is given by
A = P + Prt.
a) Rewrite this formula by factoring out the greatest
common factor on the right-hand side.
b) Find A if $8300 is invested for 3 years at a simple
interest rate of 15%.
Click here to see answer by stanbon(19016) |
|
|
| |
