Direct relationship - 8th grade (13y) - math problems
Number of problems found: 179
- Six students
Two pupils painted the class in four hours. How long will it take for six pupils?
- Angles ratio
In a triangle ABC true relationship c is less than b and b is less than a. Internal angles of the triangle are in the ratio 5:4:9. The size of the internal angle beta is:
- Slices of ham
If 17 slices equals 70 calories how many calories are in 5 slices?
- Slope RR
A line has a rise of 2 and a run of 11. What is the slope?
Two hours 24 students harvested chestnuts on 36 acres. How many square meters harvested one student per hour?
Divide the string length 800 cm in ratio 1: 5
Convert 270° to radians. Write result as multiple of number π.
Calculate the equivalent annual salary to an hourly wage of $ 19. Assume a 42-hour workweek.
- A bucket
A bucket has 4 liters of water in it when it is 2/5 full. How much can it hold?
Find how many donuts each student will receive if you share 126 donuts in a ratio of 1:5:8
Allen save € 2860 to buy a car. Yet it lacks save 55% of the car price. How much is the car?
Three copiers will do the same in an hour k copies. How many copies would be done in an hour by four such copiers? ?
- Acute angles
Sizes of acute angles in the right-angled triangle are in the ratio 1: 3. What is size of the larger of them?
The count of accidents in 1995 caused 8780 women which is 8.4%. How many men caused the accidents?
- Line segment
The 4 cm long line segment is enlarged in the ratio of 5/2. How many centimeters will measure the new line segment?
Calculate how many average minutes a year is a webserver is unavailable, the availability is 99.99%.
- Temporary workers
Three temporary workers work in the warehouse and unload the goods in 9 hours. In what time would five temporary workers unload the same products?
1 mason casts 30.8 meters square in 8 hours. How long casts 4 masons 178 meters square?
- A family
A family of four pays for garbage collection per year 1800 Kč. How many crowns a year the waste company get from the house where lives 93 people?
If one side of the rectangle is larger 4-times and second 2-times, what percentage increases the area of rectangle?
Direct relationship - math word problems. Examples for 8th grade.