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swat32
3 years ago
10

By increasing speed of car by 10km/hr the time for journey of distance 72km/hr is reduced by 36mins.find original speed of car

Mathematics
1 answer:
Eduardwww [97]3 years ago
3 0

Answer:

idk

Step-by-step explanation:

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Brenda’s bank offers car financing for 3, 4 or 5 years. If brenda chooses 5-year financing, how many monthly payments will she h
klemol [59]
The number of monthly payments Brenda will have will be given by:
Number of payments=[Number of years]×[number of months]
Number of years=5
Number of months=12
hence
# Payments=5*12=60 monthly payments
7 0
3 years ago
Given a sphere with a radius of 3cm, find its volume to the nearest whole number.
Travka [436]

Answer:

V≈113.1cm³  radius = 3 cm

Step-by-step explanation:

5 0
3 years ago
In a room, there are 450 students of which 20% are girls. A group of students have mobile phones with them, of which 40% are gir
andrew-mc [135]

Answer:

216 boys

Step-by-step explanation:

450 students: 20% girls, 80% boys

450*20%=90 girls

450*80%=360 boys

Students having mobile phones: 40% (OF THE 90) girls, 60% (OF THE 360) boys

90*40%=36 girls

360*60%=216 boys

[We honestly don't need to care about the girls without mobile phones as they are only asking how many boys have mobile phones]


4 0
3 years ago
Read 2 more answers
Julie takes her kids to a playground that has the shape shown. A. While her kids are playing, Julie wants to get some exercise.
Leona [35]

Answer:

a.) Total distance Julie cover = 128 feet

b.) Total area , the playground cover = 256 ft²

Step-by-step explanation:

P. S : The exact question is -

As given,

Length of 1 side = 16 feet

As , we have

4 sides of same length

⇒ Total length of playground = 16 + 16 + 16 + 16 = 16(4) = 64 feet

a.)

As given Julie does 2 lap of the playground

⇒ Total distance Julie cover = 64 + 64 = 128 feet

b.)

As the playground has equal side, so it must be of square shape

And, we know

Area of square = (Length of one side)²

                        = ( 16 )² = 256 ft²

∴ we get

Total area , the playground cover = 256 ft²

5 0
3 years ago
What is 645/87 rounded to the nearest integer?
Vlad1618 [11]

Answer:

7

Step-by-step explanation:

Firstly, let us divide the two numbers as so-

645/87=7.41379310345\\

To round a number to the nearest integer, look at the decimal places.

Here we have .41 - The 4 is less than 5, so it cannot round the ones place to 8.

So our answer here is 7.

6 0
3 years ago
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