Answer:
256
Step-by-step explanation:The total amount os students is 1640 which is equivalent to 100% so we get 50% of 1640 which is equall to 820 students after that we also find 35% of 1640 which is equall to 564 students. After that we sum them up which we get 1384 students and subtract it from 1640 and get 256 students.
Answer:
A dog and a cat are 200 meters apart when they see each other. The dog can run at a speed of 30 m/sec, while the cat can run at a speed of 24 m/sec. How soon will they meet if they simultaneously start running towards each other?
Let x =distance travelled by dog and 200-x be the distance travelled by cat. Inorder to meet, the sum of their travelled distances shall be equal to 200 meters as they are far apart by 200 meters.
Dog: Distance =Speed x time: x=30t
Cat: Distance = 200-x=24t
The sum of their distance travelled shall be 200 meters: 30t+ 24t= 200;54t=200;t=200/54=3.7secs
So they will meet after 3.7 seconds
To check: Distance travelled by dog:x=30(3.7)=111.11 meters
Distance travelled by cat: 24t=24(3.7)=88.89 meters
Therefore since they are travelling towards each other and their distance apart is 200 meters, after 3.7 seconds they will meet because dog travelled 111.11 meters and cat travelled 88.89 meters and they covered already 200 meters as the sum of 111.11+ 88.89=200 meters
Answer: The answer for the diagram JKLM x:25
Step-by-step explanation: the diagram is a trapezium and it is made up of a triangle and rectangle. if you find the base of the triangle it will equivalent to the length of the rectangle. so the angle is 65 so we use sin to find it which will be opp/hyp. therefore sine 65=x/30,x=0.8268286949*30=24.8048603847. which is approximately 25
Answer:
Step-by-step explanation:
a)1) As denominators are same, keep the same denominator for the result also
Add the numerators and write the new numerator.
= 2y
20 Reduce to simplest form by dividing the numerator and denominator by GCF
Answer:
16 units
Step-by-step explanation:
diameter is double the radius
hope it helps!!!
