Question

Помогите плиз срочно надо 1)Турист идет со скоростью 4,5 км\ч. За какое время он пройдет 1,8 км? Какой путь он пройдет за 1,2 ч? 2) С турбазы в оном направлении одновременно вышлм\и два туриста со скоростями 3,5 км\ч и 4,2 км\ч. Какое расстояние будет между туристами через 2ч? 3)Из 110м ткани в мастерской сшили 7 чехлов для кресел и 3 чехла для диванов. На чехол для кресла пошло 6,5 м ткани. Сколько ткани пошло на чехол для дивана? 4) Ленту длиной 5,7 м разрезали на 4 равные части. Найдите примерную длину каждой части. Ответ выразите в метра и сантиметрах.

Answer 1

Question 1:

A tourist is walking at a speed of 4.5 km/h. How long will it take for the tourist to travel 1.8 km? How far will the tourist travel in 1.2 hours?

To calculate the time it will take for the tourist to travel 1.8 km, we can use the formula:

Time = Distance / Speed

Substituting the given values:

Time = 1.8 km / 4.5 km/h

Simplifying the equation:

Time = 0.4 hours

Therefore, it will take the tourist 0.4 hours (or 24 minutes) to travel 1.8 km.

To calculate the distance the tourist will travel in 1.2 hours, we can use the formula:

Distance = Speed x Time

Substituting the given values:

Distance = 4.5 km/h x 1.2 hours

Simplifying the equation:

Distance = 5.4 km

Therefore, the tourist will travel a distance of 5.4 km in 1.2 hours.

Question 2:

Two tourists are walking in the same direction from a tourist base at speeds of 3.5 km/h and 4.2 km/h. What will be the distance between the tourists after 2 hours?

To find the distance between the tourists after 2 hours, we can use the formula:

Distance = Speed x Time

For the first tourist with a speed of 3.5 km/h:

Distance1 = 3.5 km/h x 2 hours

Simplifying the equation:

Distance1 = 7 km

For the second tourist with a speed of 4.2 km/h:

Distance2 = 4.2 km/h x 2 hours

Simplifying the equation:

Distance2 = 8.4 km

Therefore, the distance between the two tourists after 2 hours will be 8.4 km - 7 km = 1.4 km.

Question 3:

In a workshop, 7 chair covers and 3 sofa covers were made using 110 meters of fabric. If 6.5 meters of fabric were used for each chair cover, how much fabric was used for each sofa cover?

To find out how much fabric was used for each sofa cover, we can subtract the fabric used for the chair covers from the total fabric used.

The fabric used for the chair covers is calculated by multiplying the number of chair covers by the fabric used for each chair cover:

Fabric used for chair covers = 7 chair covers x 6.5 meters/chair cover

Simplifying the equation:

Fabric used for chair covers = 45.5 meters

To find the fabric used for each sofa cover, we subtract the fabric used for the chair covers from the total fabric used:

Fabric used for sofa covers = Total fabric used - Fabric used for chair covers

Substituting the given values:

Fabric used for sofa covers = 110 meters - 45.5 meters

Simplifying the equation:

Fabric used for sofa covers = 64.5 meters

Therefore, 64.5 meters of fabric were used for each sofa cover.

Question 4:

A ribbon with a length of 5.7 meters is cut into 4 equal parts. What is the approximate length of each part in meters and centimeters?

To find the approximate length of each part, we divide the total length of the ribbon by the number of parts:

Length of each part = 5.7 meters / 4 parts

Simplifying the equation:

Length of each part = 1.425 meters

To convert meters to centimeters, we multiply the length in meters by 100:

Length of each part = 1.425 meters x 100 centimeters/meter

Simplifying the equation:

Length of each part = 142.5 centimeters

Therefore, each part is approximately 1.425 meters or 142.5 centimeters long.