Answer:
The two grades that have a proportional relationship between the numbers of girls and boys are and grade 6 and 8
Step-by-step explanation:
Girls: Boys
9 : 12 (grade 6)
15 : 20 (grade 8)
3 : 4
Answer:
#1: 10
#2: 40
Step-by-step explanation:
If the sum is 50, you divide by 5, and you get 10. Then multiply that by 4 to get the 2nd number.
Answer:
a b c d e the a;lfebet
Step-by-step explanation:
Use proportions here - 8/5.2 = 96/width of actual car. using cross multiplication, 5.2*96 = 8x. this gives you 499.2 = 8x. divide both sides by eight to get x=62.4. the width of the actual car is 62.4 inches.
The answer to Q1 along with an explanation is shown in the picture;
Having a look at all the questions, they are all essentially the same type so can all be solved similarly;
So by following the method and explanation, you should be able to do the rest of the questions.