Simplify 7 × e × f × 8
Always do the numbers first before dealing with the letters. We move the numbers to one side, and the letters to the other. (7 x 8) x e x f -> I have enclosed the numbers in brackets in order to separate them so that it is clearer. (56) x e x f -> So when we multiply letters, they unite = ef; another example would be: a x b = abTherefore the answer is = 56ef
Related Maths GCSE answers
All answers ▸Farmer Joe has a rectangular pen to hold his animals. The pen’s length is 5 meters longer than the width. The pen’s area is 84 meters. Find it’s width.
The Tour de France is 2162miles long. A cyclist knows his average speed his 12.37 miles/hour from his previous races. For the Tour de France the cyclist knows he will cycle for 10 hours a day. Estimate how many days it will take him to complete the race.
If x:y=7:4 and x + y = 88, work out the value of x – y.
3x+2y=12 ; 5x+3y=19