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AlekseyPX
3 years ago
11

A Freight train is traveling 30 miles per hour. An automobile starts out from the same place 1 hour later and overtakes the trai

n in 3 hours. What was the rate of the automobile.
Mathematics
1 answer:
Mazyrski [523]3 years ago
5 0
40 I believe because the space of the auto mobile catching up to the train is 4 hours. 4 times 30 is 120 miles so u need to figure out a number that can reach 120 in three hours. 3 times 40 is 120
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Write and solve an equation to answer the question. 14 is what percent of 70?
slamgirl [31]

Answer:

20%

Step-by-step explanation:

An equation is 14=x/100*70 or 14=(x%)*70, either one works

solve for x:

  1. 14=x/100*70
  2. 14/70=x/100 (Divide each side by 70)
  3. 1/5=x/100 (Simplify 14/70)
  4. 100/5=x (Multiply each side by 100 to isolate x)
  5. x=20 (Simplify 100/5)
  6. 20% (Rewrite as a percent)

hope this helps!!

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Please help it’s finding sin C , cos C and tan C
Aloiza [94]

The given triangle has a right angle.

We use the mnemonics SOH-CAH-TOA.

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ii) \cos C =\frac{Adjacent}{Hypotenuse},\implies \cos C =\frac{16}{34},\implies \cos C =\frac{8}{17}

\tan C =\frac{Opposite}{Adjacent},\implies \tan C =\frac{30}{16},\implies \tan C =\frac{15}{8}

2. We want to find the hypotenuse.

We know an angle to be 23 degrees.

We were also given the side opposite to this angle to be 1200km.

Therefore we use the sine ratio.

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Savannah's biweekly salary is $3010.What is her annual salary?
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Answer: $78,260

Explanation:

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