Explanation:
Let’s take kids as x and adults as y
According to the question,
5x + 2y = 25 (1)
3x + 1y = 14 (2)
Let’s multiply (2) with 2 so take we can solve the equations
5x + 2y = 25
6x + 2y = 28
(-) (-) (-)
___________
-1x = = -3
x = 3
Substituting to get y
3x + 1y = 14
3(3) + y = 14
y = 14-9
y = 5
Answer:
Therefore, each child’s skate rental (x) costs $3 and each adults’s skate rental (y) costs $5
Hope it helped! :)
Scientific notation is written as
(number<u>></u>1 and <10) times (10^x) so
count how many decimal places must be moved for the number to be <u>></u>1 and <10
the number must be 1.0 or 4 decimal places
put that in the x
but it makes the number bigger so make x negative
1 times 10^-4 is the scientific notation
Step-by-step explanation:
Answer:
Wait what are u asking?
Step-by-step explanation:
A and b are perpendicular meaning that they intersect forming 90
b and c are parallel meaning that the intersection of c and a is also perpendicular
11x - 9 = 90 degrees
solve
11x - 9 = 90
add 9 to both sides
11x = 99
divide both sides by 11
x = 9
Hope this helps