Answer:
Step-by-step explanation:
STEP 1 - Write the formula Speed = Distance/Time on the board. STEP 2 - Divide the distance travelled (150 metres) by the time it took to travel (25 seconds). STEP 3 - Do the calculation 150 divided 25. You can use a calculator if you need to!
Alright! So to solve these questions, you need to find out the difference. You can use ratios to solve this. For example, question #25:
A class had 30 pupils at the beginning of this school term, but now has 5 more pupils. What is the percent of increase?
The question is basically asking how much 5 is in ratio to 30. So just divide 5 (the given amount) by 30 (the total amount). The answer is 0.16, or 16%
Hello,
There is a mistake: it is 816 cm² !!! (an area)
length are multiplied by 2,
so area are mutiplied by 2²=4
Area B=816*4=3264 (cm²)
