5d - 7 = -13
5d = -13 + 7
5d = -6
d = -6/5
Answer:
One bottle cost 0.41 cents
Step-by-step explanation:
5.89 - 3.43 = 2.46
2.46 divided by 6 = 0.41
I did not add tax.
Answer:
The actual length of the wall is 10.5 m
Step-by-step explanation:
Write and solve an equation of ratios to answer this question:
2 cm 3 m
--------- = ---------
7 cm L
Solve this for L by inverting both sides:
7cm L
---------- = --------
2 cm 3 m
and then multiplying both sides by 3m:
21
----- = L
2
The actual length of the wall is 10.5 m
Triangles= 180°
Add the 3 angles to equal 180°
17x + (10x - 5) + 50= 180
combine like terms
27x + 45= 180
subtract 45 from both sides
27x= 135
divide both sides by 27
x= 5
ANSWER: x= 5
Hope this helps! :)
