Answer:
6 apples
Step-by-step explanation:
20 - 5 = 15
15 + 2 = 17
17 - 7 = 10
10 - (2 x 2) = 6
Your answer is 6 apples
Yum yum!!
Are they all on the same straight road?
If they are and the library is between his house and the school then the distance from the library to the school is 4/5 - 3/8 = 32/40 - 15/40 = 17/40 miles.
If they are on the same road but in opposite directions from his house then the distance is 3/8 + 4/5 = 32/40 + 15/40 = 47/40 miles.
If they are not on the same straight road then we cannot work out the distance exactly but it must be between 17/40 and 47/40 miles as these are the best and worst case examples.
You are not going to be able to find a numerical value of this triangle because you do not know the type of triangle or the other side length. You can represent the perimeter using algebra though.
To find the perimeter you add the lengths of all 3 sides.
To show this as an algebraic expression, you would put 1 dm + 3 dm + x.
This will simplify to x + 4 dm, where x is the length of the missing side (in decimeter).
The probability that student scored more than 850 we shall proceed as follows:
z=(x-μ)/σ
where:
x=850
μ=750
σ=50
thus
z=(850-750)/50
z=2
thus
P(x>850)=1-P(x<850)=1-P(z<2)=1-0.9772=0.0228
Answer: P(x>850)=0.0228