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mart [117]
3 years ago
14

Niamh runs 6 km in 30-minutes what is the average speed in km h

Mathematics
2 answers:
mylen [45]3 years ago
6 0

Answer:

12 km/hr

Step-by-step explanation:

SIZIF [17.4K]3 years ago
4 0

Step-by-step explanation:

Speed = Distance / Time

given distance = 6km

time = 30 minutes = 30/60 hr = 1/2hr

speed =

\frac{6}{\frac{1}{2} }  \\  = 6 \div  \frac{1}{2}  \\  = 6 \times 2 \\  = 12 \frac{km}{h}

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Find the values of x and y using trig
Natasha_Volkova [10]

Answer:

Step-by-step explanation:

The triangle is a right angle triangle. This is because one of its angles is 90 degrees.

Let us determine x

Taking 47 degrees as the reference angle,

x = adjacent side

11 = hypotenuse

Applying trigonometric ratio,

Cos # = adjacent side / hypotenuse

# = 47 degrees

Cos 47 = x/11

x = 11cos47

x = 11 × 0.6820

x = 7.502

Let us determine y

Taking 47 degrees as the reference angle,

y = opposite side

11 = hypotenuse

Applying trigonometric ratio,

Sin # = opposite side / hypotenuse

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Sin 47 = y/11

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7 0
3 years ago
Multiply. 5⋅2/3 Enter your answer as an improper fraction, in simplified form, in the box
kodGreya [7K]
The answer is 10/3, the whole number form of it is 3 1/3 :)
7 0
4 years ago
Read 2 more answers
1.) A man invested $600 at 8% per annum for 5 years. Calculate: a.) The simple interest payable b.) The total amount of money th
Bezzdna [24]

Answer:

Following are the solution to this question:

Step-by-step explanation:

Using formula:

\text{Simple Interest} = \frac{P \times R \times T}{100} \\\\\text{ Total amount} = \text{principle}+  \text{Simple Interest}

In question (1):

Principle= \$ 600\\Rate = \ 8 \%\\Time= \ 5

In point a:

\to \frac{P \times R \times T}{100} \\\\\to \frac{(600 \times  8 \times 5)}{100}\\\\ \to  240

In point b:

\to amount = principle \ +\ simple \ interest

                 = 600 + 240 \\\\= 840

In question (2):

Principle= \$ 12,450\\Rate = \ 7.25 \%\\Time= \ 6

In point a:

\to \frac{P \times R \times T}{100} \\\\\to \frac{(12,450 \times  7.25 \times 6)}{100}\\\\ \to  5,415.75

In point b:

\to amount = principle \ +\ simple \ interest

                 = 12,450 + 5,415.75 \\\\= 17,865.75

The 3 question is incomplete, that's why it can't be solved.

7 0
3 years ago
Whatis the value of x in the equation<br> x -<br> y = 30, when y = 15?<br> 8
Ostrovityanka [42]

Answer:

x=45

Step-by-step explanation:

30+15=45

4 0
3 years ago
What’s this answer YALL IM STRUGGLING WITH MATH !!
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Area: 4900

Perimeter: 280

5 0
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