# You planned to work on a project for about 4 and a 1/2 hours today.If you have been working on it for 1 and 3/4 hours, how much more time will it take?

Step-by-step explanation:

Given : You planned to work on a project for about 4 and a 1/2 hours today.

To Find :If you have been working on it for 1 and 3/4 hours, how much more time will it take?

Solution:

Total time to be spent on project today =

You have been working on it for hours =

Remaining time =

=

=

Hence it will take   hours more .

## Related Questions

In how many ways can a subcommittee of 6 students be chosen from a committee which consists of 10 senior members and 12 junior members if the team must consist of 4 senior members and 2 junior members?

The number of ways is 13860 ways

Step-by-step explanation:

Given

Senior Members = 10

Junior Members = 12

Required

Number of ways of selecting 6 students students

The question lay emphasis on the keyword selection; this implies combination

From the question, we understand that

4 students are to be selected from senior members while 2 from junior members;

The number of ways is calculated as thus;

Ways = Ways of Selecting Senior Members * Ways of Selecting Junior Members

Hence, the number of ways is 13860 ways

Find all possible values for A, B and C+ABA
BAB
-----------
CCC
Each letter represents a single digit from 9 to 0

The sum of A and B can have no carry. If we assume A ≠ B ≠ C, then you can have ...

... (A, B, C) ∈ {(1, 2, 3), (2, 1, 3), (1, 3, 4), (3, 1, 4), (1, 4, 5), (4, 1, 5), (1, 5, 6), (5, 1, 6), (1, 6, 7), (6, 1, 7), (1, 7, 8), (7, 1, 8), (1, 8, 9), (8, 1, 9), (2, 3, 5), (3, 2, 5), (2, 4, 6), (4, 2, 6), (2, 5, 7), (5, 2, 7), (2, 6, 8), (6, 2, 8), (2, 7, 9), (7, 2, 9), (3, 4, 7), (4, 3, 7), (3, 5, 8), (5, 3, 8), (3, 6, 9), (6, 3, 9), (4, 5, 9), (5, 4, 9)}

Two equivalents of 7/4

14/8        21/12

Step-by-step explanation:

A boat propeller spins 1044 times in 3 MINUTES. Find the rate in revolutions per SECOND.

The answer is 5.8 times a second

Step-by-step explanation:

Divide 1044 by 180 (The number of seconds in 3 minutes)

To calculate the rate in revolutions per second, we first convert the 3 minutes into seconds, which is 180 seconds. We then divide the total number of revolutions, 1044, by 180. This gives us a rate of 5.8 revolutions per second.

### Explanation:

To solve this problem, we need to convert minutes into seconds because the rate is asked in revolutions per second.

Let's start by figuring out how many seconds are in those 3 minutes. We know that in 1 minute, there are 60 seconds. So, 3 minutes would be 3 times 60, which is 180 seconds.

Next, we will calculate the rate by dividing the total number of revolutions, which is 1044, by the total number of seconds, which is 180. So, 1044 ÷ 180 = 5.8.

This means that the propeller spins at a rate of 5.8 revolutions per second.

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a engine supplies 120 hp to an electric generator and the generator delivers 80 hp of electrical power . What is the efficiency of the generator ?

56 mph + 89 = idont know any thing

The electric generator has an efficiency of approximately 66.67%, which means that 66.67% of the input energy is converted into usable electrical power.

### Explanation:

The question wants to know about the efficiency of an electric generator. The efficiency of any engine or generator is defined as the ratio of useful energy output to the energy input. In this case, the energy input to the generator is 120 hp (horsepower) and the useful energy output (i.e electrical power) is 80 hp.

The formula used to calculate the efficiency is: Efficiency = (useful energy output / energy input) * 100% , Using this formula, the efficiency of the generator would be (80 / 120) * 100% = 66.67 % .

This means that 66.67% of the energy supplied to the generator is successfully converted into electrical power, while the rest is likely lost as heat or other forms of non-usable energy.

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What is the area of this triangle?

Option (D)

Step-by-step explanation:

Formula for the area of a triangle is,

Area of a triangle =

For the given triangle ABC,

Area of ΔABC =

Length of AB =

Length of CD =

Now area of the triangle ABC =

Therefore, Option (D) will be the answer.