-5(11-3t) = -6t -4
distribute -5 to the parentheses
-55+15t = -6t -4
isolate t; add -6t from both sides
-55+21t = -4
add 55 from both sides
21t = 51
divide t
t = 2.4 (rounded)
Answer:
<h2>x = 4</h2>
Step-by-step explanation:
Look at the picture.
We have the triangles 30° - 60° - 90° and 45° - 45° - 90°.
The sides are in proportions:
30° - 60° - 90° ⇒ 1 : √3 : 2
45° - 45° - 90° ⇒ 1 : 1 : √2
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Answer:
40 miles a day
Step-by-step explanation:
The difference in fixed charge is $20; the difference in mileage charge is $0.50 per mile. So it will take $20/$0.50 = 40 miles for the extra mileage cost to eat up the savings in fixed cost. At that mileage, both companies will charge the same amount:
A: 90 + 0.30·40 = 102
B: 70 + 0.80·40 = 102
Answer:
See the photo to see where its graphed
Step-by-step explanation: