She started with her whole allowance - all 10/10 of it. After she spent 4/10, she was left with 10/10 - 4/10 = 6/10, and after spending another 5/10, she’ll finally be left with 6/10 - 5/10 = 1/10 of her allowance.
Ans
B,D,F
Step-by-step explanation:
Y=5-x^2
Y=3x^2+1
Y=x^3
Answer:
it's D
Step-by-step explanation:
Answer:
The answer is 600
Step-by-step explanation:
40 × 15
Answer:
27mi
Step-by-step explanation:
Since the sailing course is equilateral in shape, then all their sides are equal.
Get one of the sides using Pythagoras theorem as shown;
Let one of the side be x
Two base will be x/2
According to the theorem;
x² = 9² +(x/2)²
x² = 81 + x²/4
x²-x²/4 = 81
3x²/4 = 81
3x² = 324
x² = 324/4
x² = 81
x = 9
Perimeter of the triangle = 3x
Perimeter of the triangle = 3(9)
Perimeter of the triangle = 27mi