# Functions + direct relationship - math problems

#### Number of problems found: 296

• Function
For linear function f(x) = ax + ​​b ‬ is f(14)=179; f(15)=154. Calculate m, if f(m) = 2019 .
• Simple interest 3
Find the simple interest if 11928 USD at 2% for 10 weeks.
• Expression
If it is true that ? is:
• Six students
Two pupils painted the class in four hours. How long will it take for six pupils?
• Michal
Michal has 2.90 per hour. How much does he earn during the week of the summer job?
• 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:
• Fast tourists
If three tourists pass the route in 5 hours, how long will the same route take six equally fast tourists?
• Motor oil
30 liters of oil cost 28.80 Euros. How much cost a liter?
• Package Deal - what to choose
The parents decided to purchase a mobile phone to their son. They choose from menu: ? Which offer is best?
• Linear independence
Determine if vectors u=(-4; -5) and v=(20; 25) are linear Linear dependent.
• Simple interest 2
Find the simple interest if 13905 USD at 4.5% for 6 months.
• Supermarket
In a local supermarket, 3/5 kilograms of squid cost 156.00. How do 4 kilograms of squid cost?
• One deci
Wine 0,375 l costs 2040 CZK. How much does 1 dl cost?
• Map 3
Map scale is M = 1: 25000 . Two cottages which are shown on the map are actually 15 km away. What is its distance on the map?
• Slope RR
A line has a rise of 2 and a run of 11. What is the slope?
• Acres
Two hours 24 students harvested chestnuts on 36 acres. How many square meters harvested one student per hour?
• Gas consumption
The vessel consume 100 tons of gas in 250 miles. How many fuel will the vessel consume if it travels 400 miles?
• Potatoes
Potatoes contain 78.6% starch. How many potatoes need to obtain 27 kg of starch?
• String
Divide the string length 800 cm in ratio 1: 5
• Cyclist
Cyclist drives 5 km in half an hour, how long will drive in 3 hours?

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