Divide total bought by 3 and multiply by 20cents:
210/3 = 70
70 x 0.20 = $14.00
Subtract the amount they paid by the amount they made:
14.00 - 6.50 = $7.50
The profit made was: $7.50
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.
Answer:
%50 if will be on heads twice
Step-by-step explanation:
A ladder placed against a wall will form a triangle with the wall and the ground. Using geometric ratios you can calculate the missing values. If you have an angle of 75.5 degrees and a hypotenuse/diagonal of 10, you need to calculate the height. Use sine.
Sine=opposite/hypotenuse
Sin75.5=0.97
0.97=opposite/10
10 x 0.97 = 9.7
The maximum height that the ladder can reach is 9.7 meters
