Maths practice for 14 year olds - page 79 of 371
Number of problems found: 7408
- Unit rate 2
Which is a lower price per pound? Four pounds for $1.40 or three pounds for $1.207. show each as a unit rate. - Which 12
Which table shows a proportional relationship between x and y? A) x 3 9 10 15 y 1 3 4 5 B) x 2 3 5 6 y 3 4 7 9 C) x 1 5 8 10 y 15 75 120 150 D) x 4 6 8 10 y 6 8 10 12 - Mdm Low
Madam Low bought four cakes and four puffs for $16. Each cake costs $0.50 more than each puff. How much did one puff cost? - Transform 4
Transform to a positive angle in standard position: 24° west of north - The distance 2
The distance between the two ports M and N is 2100km. If two ships travel towards each other, with one ship leaving port M at 20km/h and at the same time another ship from port N traveling at 15km/h. (I) How long will it take the two ships to meet? (ii) h - What is 20
What is the least number that should be added to 2497 so that the sum of the digits is divisible by 5, 6, and 10? - What power 2
What power has a pump output to move 4853 hl of water to a height of 31 m for 8 hours? Comparing the power generated by the pump vs. the power generated by the motor, which is more efficient? Which pump or motor generates more pollution if, for every watt - The length 11
The length of a rectangle is four times its width. If the area is 100 m², what is the length of the rectangle? - The length 10
The length of a rectangle is increased to 2 times its original size, and its width is increased to 3 times its original size. If the area of the new rectangle is equal to 1800 square meters, what is the area of the original rectangle? - A six-sided
A six-sided die is rolled once. What is the probability that the number rolled is an even number greater than two? - Ratios equation
Find the number x so that: 1:x=4:100 - Play the flute
There are 100 members 12 play the flute. What % that plays the flute? - Spirulina 74164
Spirulina seaweed contains 55% protein per 100 grams, i.e., 55 grams of protein. How many grams of protein are in 200 grams of spirulina? - Nitrogen gas
In a cylinder with a piston, there is nitrogen N2 with a volume of 5 liters, a temperature of 25 degrees Celsius, and a pressure of 200 kPa. We very slowly compress the gas in the cylinder to half its volume while its temperature does not change. Determin - Three trucks
There are places A and Y, three trucks, B, C, and D, respectively. Truck B is 60 km/h, C is 40 km/h and D is 80 km/h. Trucks B and C start at place A while D starts at Y. After D and B meet, two hours later, will D meet C. What is the distance between pla - Numbers 74084 I think two numbers. The first is smaller by 30 than the second. The sum of these numbers is 60. What two numbers do I think?
- Two teacher 2
Two teachers are paid 5100 USD together. If the teachers are to share this amount in the ratio of 3:7, how much does each receive? - Axial section
The diagonal of the axial section of the rotating cylinder is 6 cm, and its surface is 30 cm square. Calculate the radius of the base. - Mackie's
Mackie's income varies directly from the number of days that she works. If she earns 8000 pesos in 20 days, how much will she earn if she works three times as long? - Preparation 73954
Ivana was preparing for Testing 9. On the first day, she calculated a quarter of all calculated tasks; on the second day, a sixth; on the third, a fifth; on the fourth, only an eighth; and on the last day, she solved 31 tasks. How many tasks did she recal
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