09/19/17
what is the new ratio of orange to strawberry chocolates?
In a box of chocolate's there are 36 strawberry flavoured chocolates. And the ratio of orange chocolates to strawberry chocolates is 5:4. If someone eats six of the orange chocolates, what is the...
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09/19/17
In a certain country, the true probability of a baby being a boy is 0.522....
In a certain country, the true probability of a baby being a boy is 0.522. Among the next seven randomly selected births in the country, what is the probability that at least one of them is a girl?
09/19/17
My car gets 23.5mpg. I have 2.5 gallons in it and I need to drive 13.6miles and back, how much gas will i have left?
Could you answer the question or show me how to set up the equation.
09/18/17
Carl has 50 pieces of candy in a bag, some pieces are red and the rest are green. The ratio of red to green candies is 3:2, how many pieces of candy are green?
Carl has 50 pieces of candy in a bag, some pieces are red and the rest are green. The ratio of red to green candies is 3:2, how many pieces of candy are green?
09/18/17
The average grade for a math test was 79 with a standard deviation of 6.5. (a) If the grades are normally distributed, estimate what percentage of grades is bet
I'm not sure how to do this. please help
09/18/17
how many mg of the drug are present in 5 mL of that solution?
If 20 mg of a drug is dissolved in 250 mL of solvent, how many mg of the drug are present in 5 mL of that solution?
09/18/17
Assume the random variable X has a binomial distribution with the given probability of obtaining a success.
Assume the random variable X has a binomial distribution with the given probability of obtaining a success. Find the following probability, given the number of trials and the probability of...
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09/18/17
Simplify the following expression. F(F(x))=
Let F(x)= 1 x-2Simplify the following expression.F(F(x))F(F(x))=
09/17/17
If a ball is thrown into the air with a velocity of 40 ft/ sec it's height in feet t seconds later is given by y=40t-16t^2
Find the average velocity for the time period beginning when t=2 and lasting
I) 0.5 seconds ii) 0.1 second iii) 0.05 iv) 0.01
09/17/17
if the perimeter of a rectangle is 32 feet and tithe length of the width is 6 feet longer than the length of the height what is the area
if the perimeter of a rectangle is 32 feet and tithe length of the width is 6 feet longer than the length of the height what is the area
09/16/17
Find an angle between 0 and 2π that is coterminal with the given angle 11.
Find an angle between 0 and 2π that is coterminal with the given angle 11. I do not understand this problem at all and i have been working at it for an hour now. I am familiar with coterminal...
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09/16/17
Please help me with ratio?
In a school the ratio of male to female staff is 2:3. 1/4 of the male teachers are under 30. 40% of the female teachers are under 30. Write the ratio of under 30s to over 30s. Give your answer in...
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09/16/17
How many coins did each have originally?
Natalie has some nickels, Dirk has some dimes, and Quincy has some quarters. Dirk has five more dimes than Quincy has quarters. If Natalie gives Dirk a nickel, Dirk gives Quincy a dime, and Quincy...
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09/15/17
need one more explanation
Very small numbers are often written in exponential form using scientific notation to make them easier to multiply or divide. Explain how to apply the laws of exponents when multiplying and...
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09/15/17
standard deviation 2
In a large class of 500 students, the mean and standard deviation of a final exam are 65 and 11, respectivelyIf the grades distribution is not symmetric at least how many students have grade within...
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09/14/17
f(x) = x^4 -3 :[-2,3] solution and explanation especially what the brackets connote
please explain
09/14/17
The ratio of reds to greens was 4 to 11 and 60 percent of the greens exceeded the number of reds by 52. How many were red and how many were green?
Idk how to do this. Plz help!!!!
09/14/17
Two times one complementary angle is 6 degrees less than the second is 3 degrees. Find the angles.
find x and 90-x
09/14/17
How many child tickets were sold that day?
At the museum, child tickets cost $6.20, and Adult tickets cost $9.40. On sunday, three times as many adult tickets as child tickets were sold, for a total of $825.60. How many child tickets were...
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09/14/17
The area (in ft2) of a rectangle that is eight times as long as it is wide; w = width of the rectangle (in ft)
This is a pre-cal problem. I need to express its given quantity in terms of the indicated variable.
09/14/17
An access ramp rises 3.2 feet over a distance of 30 feet. What is the angle of the ramp with the horizontal?
Using Trigonometric Ratios to Find Measures of Angles of Right Triangles
Use the Venn diagram to write the numbers of the correct regions
There are 3 interlocking circles in the universe, with the number 8 outside the circles. Circle A has the numbers 1,2,3 & 4 while circle B has the numbers 3,4,5,6 & Circle C 2,3,6,7 Where...
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09/13/17
invest part of 8000 in stock that lost 2%. invested the rest at 8% annually. her gain for the year at least $400 what was the most she couldve invested in stock
jenny invested part of $8000 in stock that lost 2%. She invested the rest at 8% annually. If her gain for the year was at least $400, what was the most she could have invested in stock? yall please...
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what is highest level of measurement (nominal, ordinal, or Interval-ratio) for income
1. Determine the highest level of measurement (nominal, ordinal, or Interval-ratio) for each of the following variables. Identify the highest level at which the variable might be measured. Explain...
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