Abeeta bought 3 3/4 kg apple and 4 1/2 kg guava what is the total weight of fruit purchased by her

Washing his dad's car alone, eight-year-old Levi takes 2.5 hours. If his dad helps him, then it takes 1 hour. How long does it t

Dmitry [639]

Answer:

Levi's dad takes 1.67 hours to wash the car by himself

Step-by-step explanation:

* Lets explain how to solve the problem

- Levi takes 2.5 hours to wash his dad's car alone

- Levi and his dad take 1 hour to wash the dad's car together

∵ Levi takes 2.5 hours to wash the car alone

∴ The rate of Levi is 1/2.5 car/hr

∵ His dad takes x hours to wash the car alone

∴ The rate of his dad is 1/x car/hr

∵ They working together for 1 hour to wash the car

- The equation of the work is rate of Levi × t + rate of his dad × t = 1

∵ t is the time of working together

∵ t = 1 hour

∴ $\frac{1}{2.5}(1)+\frac{1}{x}(1)=1========\frac{1}{2.5}+\frac{1}{x}=1$

- Multiply both sides by 2.5x to cancel the denominators

∵ $\frac{1}{2.5}(2.5x)=x=====\frac{1}{x}(2.5x)=2.5$

∵ 1 × (2.5x) = 2.5x

∴ x + 2.5 = 2.5x

- Subtract x from both sides

∴ 2.5 = 1.5x

- Divide both sides by 1.5

∴ x = 5/3 ≅ 1.67

∵ x is the the time of his dad to wash the car alone

∴ Levi's dad takes 1.67 hours to wash the car by himself

3 0

3 years ago

Read 2 more answers

A baseball team played 154 regular season games. The ratio of the number of games they won to the number of games they lost was

Fittoniya [83]

Answer:

88 won and 66 lost

Step-by-step explanation:

Won = $\frac{154}{4+3}$ ×4 = 88 games

Lost = 154 - 88 = 66 games

7 0

2 years ago

Translate the sentence into an equation

Mrrafil [7]

4b+6=5 —— that’s correct because it’s asking for the sum of 4 times and number and 6=5 and sum is addition

8 0

2 years ago

1) At Joe's Restaurant, one-fourth of the

andrew11 [14]

Answer:

1/20 of the patrons at Joe's restaurant are expected to be male and out of town.

Step-by-step explanation:

1. Let's review all the information provided for solving this question:

Proportion of patrons that are male at Joe's restaurant = 1/4

Proportion of patrons that are from out of town at Joe's restaurant = 1/5

2. What proportion would you expect to be male and out of town?

For finding the proportion of the patrons, that would be male and that would be from out of town, we do this calculation:

Proportion of patrons that are male at Joe's restaurant * Proportion of patrons that are from out of town at Joe's restaurant

1/4 * 1/5 = 1/20

It means that 1/20 of the patrons at Joe's restaurant are expected to be male and out of town.

8 0

3 years ago

the perimeter of an isosceles triangle is 50 cm if one of the two equal side is 13 cm find the third side?

pychu [463]

Answer:

14 cm

Step-by-step explanation:

There are 2 equal sides of 13 cm, thus the third side is

third side = perimeter - 13 - 13 = 50 - 26 = 14

5 0

3 years ago

Read 2 more answers

Abeeta bought 3 3/4 kg apple and 4 1/2 kg guava what is the total weight of fruit purchased by her​

Abeeta bought 3 3/4 kg apple and 4 1/2 kg guava what is the total weight of fruit purchased by her