3x+2less than equal to 5x-4
1 answer:
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Answer:
Step-by-step explanation:
We know: the denominator must be different than 0.
Therefore
<em>add 8 to both sides</em>
<em>divide both sides by 2</em>
Answer:
C. 3.33 hours
Step-by-step explanation:
Use the algebra work equation:
=
+
, where tb is the time to work together, t1 is the time it takes one person, and t2 is the time it takes the other person
Plug in the values we know:
=
+
=
+
=
20 = 6tb
3.33 = tb
So, it would take them 3.33 hours when working together.
Answer:
y ≈ 2.5
Step-by-step explanation:
Using the Sine rule in Δ XYZ
=
, substitute values
=
( cross- multiply )
y sin50° = 2 sin75° ( divide both sides by sin50° )
y = ≈ 2.5 ( to the nearest tenth )