Answer:
$18.75
Step-by-step explanation:
Let
y = Total cost
x = number of kilometers
The equation:
y = 3.75 + 1.50x
If x = 10 km
y = 3.75 + 1.50(10)
= 3.75 + 15
= 18.75
y = $18.75
y = Total cost = $18.75
$30 because you are taking away 20% of $30 and then adding back that 20%.
A right angle would be the correct answer
Answer:
a = -1, b = -2.5
Step-by-step explanation:
Rule for the dilation of a vector
by a scale factor of k is,
(x, y) → (kx, ky)
BY using this rule for a vector
by a scale factor of 2.5
→ 
Followed by the rotation by 90° Or
radians,
Rule for rotation of a vector by 90° is,
(x, y) → (-y, x)
By this rule vector
will become,
→ 
If we represent this vector by
,
Then a = -1 and b = -2.5 will be the answer.