Answer:
y=-1x+9
Step-by-step explanation:
y=-1(x-3)2+4
y=-1x+3+6
y=-1x+9
There u just needed to search the formula
Answer:
a. 2:3, b. 25 students, c. 3:2
Step-by-step explanation:
a. 5 (total) - 2 (with glasses) = 3 (without glasses), making the ratio 2:3.
b. We can assign the total students with the variable x. 3:5=15:x, 75=3x, x=25. 25 total students.
c. 25 (total students) - 15 (without glasses) = 10 (with glasses). (10+5):(15-5) is 15:10, which, when simplified, equals to 3:2.
13+12+10=35
£28/35=0.8
0.8x12(for becky)=9.6
so one third of 9.6 is 3.2
therefore 9.6-3.2=6.4
becky have only £6.40 left