Answer:
i think its -4
Step-by-step explanation:
Simplifying
-20x2 = 36x
Solving
-20x2 = 36x
Solving for variable 'x'.
Reorder the terms:
-36x + -20x2 = 36x + -36x
Combine like terms: 36x + -36x = 0
-36x + -20x2 = 0
Factor out the Greatest Common Factor (GCF), '-4x'.
-4x(9 + 5x) = 0
-4.
Ok so pete lays 10 more than jim per hour
pete and jim laid same amount of tiles
j=jim's rate
p=pete's rate
6j=5p
but pete lays 10 tile per hour faster so
p=10+j
sub
6j=5(10+j)
6j=50+5j
minus 5j both sides
j=50
jim can lay at 50 tiles per hour
Answer:
180 sq.cm
Step-by-step explanation:
A = 10 x 10 + 16 x 5 x 1/2 x 2
A = 100 + 16 x 5
A = 100 + 80
A = 180 square cm
Hope that helps!
Answer:
3(7a - 9)
Step-by-step explanation:
21a–27
3*7*a - 3*9
Factor out 3
3(7a - 9)
Answer:
RS = 32
Step-by-step explanation:
Set-up equation like this -- 2x+6+16=4x-4
Solve for x
Then plug x in for the length of RS. You should get 32 for RS.
