Answer:

Step-by-step explanation:
we are given triangle as
we know that
triangle PRS and triangle PQS are similar
so, the ratios of their sides must be equal
we get

now, we are given
RS=4
QS=6
we can plug it



now, we can solve for PS

Answer:
$80 was on the gift card to begin with
Step-by-step explanation:
Let the initial money be x
Peter spent (1/2)*x
Peter added 10
<em>Before adding more money on the gift card Peter had x -(1/2)x left on the gift card which is (1/2)x</em>
<em>After loading more money Peter had (1/2)x + 10</em>
(1/2)x = 40 <em>(money spent by Peter)</em>
x/2 = 40
x = 80
Answer:
15%
Step-by-step explanation:
$40 : 100 = 0,4
1% is $0,4
$6 : 0,4 = 15%
So the percentage is 15%.
Answer:
C. 3
Step-by-step explanation:
This is a 30 60 90 triangle. To get from 3 rad 3 to x you need to divide rad 3 which gives you 3.
7.5 i think not 100% sure tho