Answer:
240
Step-by-step explanation:
20% of the students like rock and 40% like hip-hop. That means that 60% of the 360 students would be expected to choose one of the two. Because you don't know the other 10%, you would assume that they would have the same ratio of students who like the country to those who like rock and hip-hop. 60 is 2/3 of 90, so you would expect 2/3 of the students to like hip-hop or rock. 2/3 of 360 is 240.
(this is not my handlely work; I not very good at explaining)
The first one is a proportional relationship.
Its the last one! Also if you dont know what I mean by this is, its the 4th one. You Welcome Merry Christmas
Answer:
Step-by-step explanation:
At first sight this equation has 3 terms. Multiply all 3 of them by 10 to remove the fractions:
4b + 13 = 4(b - 5)
Carrying out the multiplication, we get:
4b + 13 = 4b - 20
This can never be true (13 is never equal to -20), so this equation has NO SOLUTION.
Answer:
The third one is the answer. if you ever need help hit me up.
Step-by-step explanation: