12:15 does not belong, since that is a ratio of 4:5, whilst the others are all 3:4.
To find the scale factor divide the bigger measurement by the smaller one.
You did number 17. 42 / 3 = 14 so your scale factor is 14, option D.
For number 18, 48 / 6 = 8 so option A.
Answer:
Step-by-step explanation:
(-4, -1) is what you asked to be plotted.
The first number is what number you go to on the x axis (horizontal).
The second number is what number you go to on the y axis (vertical).
I've attached a picture to help demonstrate. :)
The way I remember which comes first is to keep it alphabetical. X comes first, so go on the x axis first, then y
Answer:
9 students in music class.
Step-by-step explanation:
In art there are 4 and since there are 8 more 8 + 4 = 12. so there are 12 in Art.
4 x _ = 12. —> 4 x 3 = 12.
so we need to do the same for music class.
For music there are 3.
so we multiply by 3 like we did with the 4.
3 x 3 = _ —> 3 x 3 =9.
so there are 9 students in music class.
