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Leya [2.2K]
3 years ago
12

Working alone, Jamie can mow her lawn in 75 minutes. If Bob helps her, then the two

Mathematics
1 answer:
djyliett [7]3 years ago
8 0

Answer:

  • 50 minutes

Step-by-step explanation:

<u>Jamie's working speed is:</u>

  • 1/75 job/min

<u>And Bob's speed is</u>:

  • 1/x job/min

<u>Their working speed together is:</u>

  • 1/75 + 1/x = 1/30

<u>Solving for x:</u>

  • 1/x = 1/30 - 1/75
  • 1/x = 5/ 150 - 2/150
  • 1/x = 3/150
  • 1/x = 1/50
  • x = 50

Bob can do the job in 50 minutes

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The top of a storage container is a hemisphere with a diameter of 28 feet. What is the volume of the storage container? Round yo
creativ13 [48]

Answer:

5749.3 cubic feet

Step-by-step explanation:

The volume of the  storage container would be defined by the volume of the shape; a hemisphere

The volume V of  a hemisphere is given as

V = 2/3 π r^3

where r is the radius of the hemisphere

Given that the diameter is 28 feet, the radius = 14 feet

hence the volume

= 2/3 * π * 14^3

= 5749.333333

To the nearest tenth

= 5749.3 cubic feet

5 0
3 years ago
Between the first and second year of existence of a community service organization, the membership of the organization grew by 1
Marianna [84]

Answer:

i don't know the answer sorry

7 0
3 years ago
If there are 52 weeks in a year, how many more hours does a squirrel sleep in a year than a rabbit?
AveGali [126]

The squirrel sleeps 2548 hours more than the rabbit.

Difference of the numbers

Difference of the numbers means the result of subtracting one number from another.

Given,

If there are 52 weeks in a year,

Then we need to find how many more hours does a squirrel sleep in a year than a rabbit.

First, we have to find the sleeping pattern of squirrel  and rabbit.

A squirrel spends up to 60% of its day asleep, which means that an average squirrel sleeps for almost 15 hours each day.

Similarly, the rabbits are sleep six to eight hours each day.

So for one day,

Rabbit = 8 hours per day

Squirrel = 15 hours per day.

Then the sleeping hours for one week is

Rabbit = 8 x 7 = 56 hours

Squirrel = 15 x 7 = 105 hours

So, for 52 weeks, they spend

Rabbit = 56 x 52 = 2912

Squirrel = 105 x 52 = 5460

So, the difference is

=> 5460 - 2912

=> 2548

Therefore, the squirrel sleeps 2548 hours more than the rabbit.

To know more about Difference of the number here.

brainly.com/question/666360

#SPJ4

5 0
2 years ago
Greta uses 3oz of pasta to make 3/4 servings of pasta. How many ounces per serving?
PSYCHO15rus [73]
The answer is one ounce
7 0
4 years ago
Alex wrote 103.903 in expanded form as 100+3x1+9x1/100+3x1/1000. Explain his mistake. Then tell how to correct it.
masya89 [10]
Here is the mistake is on 9x1/100 because after decimal 9 is there means
9 has to be multiplied by 1/10 to get the 0.9

Here if we expand the 103.903 then from left to right
1 = 1x100 +
0 = 0x10   +
3 = 3x1     +
9 = 9x1/10+
0 = 0x1/100+
3 = 3x1/1000 = 103.903
7 0
3 years ago
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