Answer:
5.7km
Step-by-step explanation:
-let the drive east be the base of our 'triangle' and the drive north be the height, h.
-The distance from the parents to the grandparents, 9km, forms the hypotenuse.
#Using Pythagorean Theorem, we can find the distance to her grandparents as:
Hence, the distance fro Hayley's place to her grandparents is 5.7km
2(x + 4) =
x + 4 which is the second option is the equivalent expression.
Explanation:
First, we need to calculate the value of two-fifths of x. It means 2 portions out of the five portions of x which equates to x.
Now we calculate the values of the two expresssions on the LHS.
1) 2 (two-fifths x + 2) = 2 (x + 2) =
x + 4.
2) (two-fifths x + 4) = 2(x + 4) =
x + 8.
Now we determine values of the four expressions on the RHS.
1) Two and two-fifths x + 1 = 2x + 1
2) Four-fifths x + 4 = x + 4
3) Four-fifths x + 2 = x + 2
4) Two and two-fifths x + 8 = 2x + 8.
Out of the various LHS and RHS values, the LHS value and
RHS value is the same. So option 2 is the answer.