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Zina [86]
3 years ago
10

The distance travelled by a car is 15km. If the car travelled at an average speed of 50km/h, how long did the trip take? Show wo

rking out.
Mathematics
1 answer:
egoroff_w [7]3 years ago
6 0

Answer:

18 minutes

Step-by-step explanation:

Given distance (D) and average speed (S) then time (T) is calculated as

T = \frac{D}{S} = \frac{15}{50} = \frac{3}{10} hour

\frac{3}{10} hour = \frac{3}{10} × 60 min = 3 × 6 = 18 mins

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I need help this question?
Olegator [25]

Answer: the first option is the correct answer.

Step-by-step explanation:

Let x represent the number of necklaces that he makes in a year.

Profit = Revenue - cost

The cost of making each necklace is $5. In making necklaces in a year, the fixed cost is $5000. This means that the total cost of making x necklaces in a year is

5x + 5000

Sam sells each necklace for $10 each. This means that the total amount made from selling x necklaces is $10x.

For Sam to make profit of $1000 in a year, the number of necklaces that she must sell would be

1000 = 10x - (5x + 5000)

1000 = 10x - 5x - 5000

10x - 5x = 1000 + 5000

5x = 6000

x = 6000/5

x = 1200

7 0
3 years ago
Triangle ABC had a perimeter 18 cm
Anna007 [38]

Answer:

Use pythagoreum theorem to determine whether it is or isn't since I'm not really sure myself but here's my calculations.

Step-by-step explanation:

We need to find AC.

Picture a triangle called ABC. AB is one side and BC the other while AC is the hypotenuse.

AC=

ac =  \sqrt{ab ^{2}  +  {bc}^{2} } \\ ac = \sqrt{ {7}^{2} }  +  {3}^{2}  \\ ac =  \sqrt{49 + 9}  \\ ac =  \sqrt{58 }  \\ ac = 7.6

Round up the 7.6 to a whole number and you get AC=8. To get perimeter of a triangle simply add the sides together to get 18.

Not really sure about my answer but hope this helped.

5 0
3 years ago
A rectangular floor is 18 feet long and 12 feet wide. what is the area of the floor in square yards
yaroslaw [1]
You need to find the answer in yards
1 yard=3 feet
Divide 18 and 12 by 3
18/3=6
12/3=4
A=bh
A=4*6
A=24 yards ^2
hope this helps:)
please mark thanks and brainliest:)
5 0
3 years ago
Read 2 more answers
After telling tickets to a dance for $3.25 each, the student council brought in $1020.50 from ticket sales. How many tickets did
Scilla [17]

1020.50 \div 3.25 = 314
So that means that they sold 314 tickets
4 0
3 years ago
Read 2 more answers
Identify the number as real, complex, pure imaginary, or nonreal complex. (More than one of these descriptions may apply.) -9i
Agata [3.3K]

Answer:

Step-by-step explanation:

Me no hablas Inglish sorry pal

8 0
3 years ago
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