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xenn [34]
3 years ago
8

a bus trip covers 191 km and takes 4 hours and 15 minutes, what is the average speed of the bus in kilometers per hour

Mathematics
1 answer:
umka21 [38]3 years ago
6 0

Answer: 44,94 km/h

Step-by-step explanation: 15 minutes is a quarter of hour. So we can write 4h + (1/4)h = 17/4 = 4,25 h.

As the average speed is calculated dividing distance by time, the result is 191/ 4,25 = 44,94 km/h.

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Triangle ABC and Triangle DEF are similar. For triangle ABC, AB = 2x , AC = 24 inches and BC = 20. For triangle DEF, EF = 5 and
Norma-Jean [14]
X=8.

Following the similarity statement, we know that AC is to DF as BC is to EF.  The ratio would be:

24/(x-2) = 20/5

Cross multiply:
24*5 = 20(x-2)

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120 = 20x - 40

Add 40 to both sides:
120+40 = 20x - 40 + 40
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3 years ago
$25;300%increse percent change
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3 years ago
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Answer:

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Which statement must be true about the diagram?
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Frank invests $1,000 in simple interest investment account that pays 8% a year. After a number of years, he withdraws his balanc
MAXImum [283]

There are 15 years was his money invested.

<h3>What is simple interset?</h3>

Simple Interest is an easy method of calculating the interest for a loan/principal amount.

Given

Frank invests $1,000 in simple interest investment account that pays 8% a year.

After a number of years, he withdraws his balance of $2,200.

The number of years was his money inversted is;

\rm I= P\times r \times t

Where p is the principal amount, r is the rate of interest, I is the amount and  t is the time.

Substitute all the values in the formula;

\rm I= P\times r \times t\\\\2200-1000= 1000 \times .08 \times t\\\\1200 = 80t\\\\t = \dfrac{1200}{80}\\\\t=15

Hence, in the 15 years was his money invested.

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brainly.com/question/26677076

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