2,572 Answered Questions for the topic Maths

Maths

02/02/18

A number is multiplied by five, and two-fifths is subtracted from the result. The result is three-quarters. The number is:
A 7/100 b 3/21 C 23/100 D 21/12 E 11/12
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Maths

02/01/18

laura collects foreign coins. she has 86 in total. she has 50 lira and drachma. she has 59 lira and peseta. how many lira coins does she have?
a simple maths question.
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02/01/18

Help with maths problem while learning to calculate stocks.
Which is a better Investment: A stock of 6% for $108 or a stock of 4% at $90. This is all that is given I tried some thing but couldn't figure it out. Please Help.
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Maths

01/29/18

what is the fraction
numerator is one less than the denominator.if 3 is added to both numerator and denominator the fraction becomes 3/28 times the original. what is the fraction?
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Maths Science

01/28/18

share 40 pounds between tim and sam
maths question  
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01/28/18

Bisection method
Bisection method... How to find initial values.. I know we have to check for 0 then 1 then 2 and so on... But in book they have taken negative initial values sometimes how and why i can't understand
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01/27/18

Easy question however, I somehow can't do it
a pupil travels to school either by MRT or by bus. Th probability that the pupil will be late for school is 1/12 if he travels by MRT and 1/9 if he travels by bus. a) if he travels by bus on two... more
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Maths

01/23/18

What is the length and width?
a rectangle has an area of 24cm and a perimeter of 20cm.
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Maths Statistics

01/23/18

How does a smaller sample size and a population normally distributed affect a confidence interval
How does a smaller sample size and  if the population is also normally distributed affect a confidence interval you have calculated ?
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01/22/18

An aircraft is travelling at 30 degrees to the horizontal, a crosswind is blowing due east at 70km/h, whereas the aircraft is travelling at 500km/h
B) Use the cosine rule to determine the resultant speed and deflection of the aircraft. C) Describe the course correction that the pilot must make to arrive on course.
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Maths

01/21/18

2 numbers that have a difference of 62
out of 34, 25, 4, -13, -17, -37 what are the 2 number that have a difference of 62
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01/17/18

A projectile travels with a projectile speed of 200m/s at an angle of Pi/4 radians to the horizontal. Calculate the x and y components of the speed
I need help with this question 
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01/17/18

An architect stands 50m from the base of a building. He measures the angle between the base to the top as Pi/3 radians. Calculate the height of the building.
I need help with this question 
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01/17/18

convert 75 degrees into radian measure. calculate the distance between two points on a circle if its radius is 1000m and the angle of separation is 75 degrees.
I need help with this question
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01/17/18

solve the following system by substitution : 2x-3y=-2 and 4x+y=24
I need help with this question. 
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01/17/18

The sum of two numbers is 9. The squares of the two numbers is 41. Find the values of the two numbers.
I need help with the question.
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01/17/18

The sum of the digits of two-digit number is 7. when the digits are subtracted, the number is -5. find the number
I need help with this answer.
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Maths

01/16/18

how does π(r+1.5)^2 = πr^2+2.25π+3πr? Where does the 3πr come from?
i don't understand how you get the 3πr
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Maths

01/16/18

TRIGONOMETRY
Let f(x)=x2-4x+1 g(x)=3x3-2 then finda.   f-g b.    (f+g) (2) c.    ( f/g)(-1)
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Maths

01/16/18

the diagram shows a circular pond of radius r metres surrounded by a circular path. The circular path has a width of 1.5m. Calculate the area of the pond.
The circular path has a constant width of 1.5m. The area of the circular path is 1/10 the area of the pond.
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01/16/18

How many pots of 4 x 4 can be placed in a yard 185 square feet
How many pots of 4 x 4 can be placed in a yard 185 square feet. You can take the pot shape to be a square.
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Maths

01/16/18

Maths level 1
last year tim spent 20% of his salary on rent , 1/5 of his salary on entertainment, 1/4 of his salary on living expenses. the rest he saved. he spent £4000 on entertainment. how much money did he... more
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Maths

01/14/18

Its a Set 2 maths Question
 Micheal drives 143 miles from town A to town B in 2 hours and 36 minutes. He then drives from town B to town C at the same speed and takes him 21 minutes   A. Workout Micheals average speed from... more
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Maths

01/14/18

3 apples have an average of 100 grams.The largest apple is removed.The other 2 apples have a mean of 70 grams,what is the mean of the largest apple
Skkkrrrrrrrrrrrrrrrrra skidikaka boom 2+2 is 4-1 thats 3 quick maths
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Maths

01/14/18

From Aderdeen to Leicester by road is 700km. Find the nearest hour the time taken by a truck if its speed is 60km per hour
yes please help me on this like pls
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