2,563 Answered Questions for the topic Maths

11/26/21

Help me answer this question please
If V is directly proportional to x3 and inversely proportional to y2, and if V = 12, when x = 2 and y =1, what is x so that V = 81 when y = 2?
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11/26/21

Please help me answer this question, Thank you!
The number of people working on a certain job varies inversely as the time required to do thejob. If 20 men can do a portion of a job in 3 days, how many men can do the same job in 10days?
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11/26/21

Help me answer this question, please.
M varies directly as N. If M = 20, then N = 5. Determine the constant of variation.
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Maths

11/22/21

question is below in description

One month Nicole rented 8 movies and 4 video games for a total of 45 dollars. The next month she rented 3 movies and 2 video games for a total of 20 dollars . Find the rental cost for each movie... more
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11/21/21

please help me with this

Use log 2 = 0.3010 and log 3 = 0.4771 to evaluate each of the following expressions.(a) log 6(b) log root 3 base 10
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11/17/21

How much should your mom set aside and invest in a fund earning 3% compounded quarterly if she needs ₱85,000.00 in 20 months?
How much should your mom set aside and invest in a fund earning 3% compounded quarterly if she needs ₱85,000.00 in 20 months?
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Maths Trigonometry

11/15/21

6cos^2x + sinx = 4
ended up with sinx (6sinx -1)=2
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Maths

11/15/21

help with math, work
a bucket of raffle tickets was distrubited evenly to 48 people if each person got 4 tickets how many tickets were in the bucket
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11/14/21

How is this equal to one?
√(x+Sx)-√x limSx→0 sin ( 2 ) = 1 (How is this equal to one?) √(x+Sx)-√x ... more
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11/13/21

Probability of event
The probabilities of Ahmad winning a badminton match and a chess game are 3/5 and 1/6. Find the probability that Ahmad only wins one of the match or game.
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11/12/21

Can someone please help me with this Geometry problem?
A sculpture on the shape of a square-based pyramid is being added to the courtyard of a building. A scale model of the sculpture has base sides of 5 feet and a height of 4 feet. Determine the... more
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11/12/21

Check each of the given numbers to see if they are solutions to each equation. Show your checks and summarize which are solutions and which are not:
a). n=4n+5 n=-3,-5/3,0,5/3b). m-2m2=-120 m=10,8,1,-2,-7.5
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11/11/21

Complicated Work time math help.
A and B working together for 9 hours work in x days. B and C can get the job done in half the time A and B could in the same no of days. C and D working 8 hours takes 15 days longer than A and B to... more
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11/10/21

Can you show me how to find (1.016)^3 without calculator?
Anyone can do 1.0163 with a calculator but I am weak in decimal-related calculations and have to sit for exams that do not allow calculators. So can anyone show how to do this step by step without... more
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Maths

11/08/21

Math I need help
The sun of two numbers is -5, and the sun of squares of two numbers is 17. What are the two numbers? Explain your reasoning.
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11/07/21

You need a 50% alcohol solution. On hand, you have a 200 mL of a 20% alcohol mixture.

How much pure alcohol will you need to add to obtain the desired solution?
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Maths Math

11/07/21

List the Numbers
The mean of five numbers is 8, the median is 7. List the numbers
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11/05/21

From the following formula of hydrophilic ointment solve for the quantities of each ingredient needed to prepare 5 lb (Avoir) of the ointment. Note: 1 lb = 454 g (avoir)
Methylparaben 0.25 gPropylparaben 0.15 gSodium lauryl sulfate 10 gPropylene glycol 120 gStearyl alcohol 250 gWhite Petrolatum 250 gPurified Water, add 1000 ga) Use Ratio & Proportion for... more
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Maths

11/04/21

what fraction describes 85%?
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Maths

11/03/21

The difference between five-sixths of a number and two-thirds of the same number is 4. Find the number.
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Maths

11/01/21

If i have $890 and i take $250 what percentage did i take?
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10/30/21

Check each of the given numbers to see if they are solutions to each equation. Show your checks and summarize which are solutions and which are not:
a). n=4n+5 n=-3,-5/3,0,5/3b). m-2m2=-120 m=10,8,1,-2,-7.5
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10/30/21

List the Inverse of the Operations that were applied to y:
List the Inverse of the Operations that were applied to y:y3/12-7
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10/30/21

Consider the expression:
Consider the expression: x2(13-x)a). Evaluate the expression when x is -23. b). What objects are being subtracted? c). What objects are being multiplied?
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Maths Trigonometry

10/30/21

Prove 8sin^3(x)cos(x)=2sin(2x)-sin(4x)
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