3 years ago

John took 45 minutes to bicycle to his grandmother's house, a total of four kilometers. what was his speed in km/hr?

1 answer:

4 0

We need to convert 45 min to hours.
There are 60 min in an hour.
45/60 = 0.75
45 minutes = 0.75 hour

(4 km)/(0.75 h) = 5.3333 km/h = 5 1/3 km/h

You might be interested in

Help please will be marked as brainliest if correct

Archy [21]

Answer:

h = 10 bc 4.7 x 10 = 47

f = 36 bc 6 x 36 = 216

g = 3.5 bc 3.5 + 1.6 = 5.1

unlock number equation = f - g x h or 36 - 3.5 x 10

unlock number: 1

8 0

3 years ago

Read 2 more answers

The area of a square is 64 inches. How long is each side

SSSSS [86.1K]

Answer:

21.33

Step-by-step explanation:

8 0

3 years ago

There are 48 students in a school play. The ratio of boys to girls is 5:7. How many boys are in the school play? Explain how you

mr Goodwill [35]

Boys: x
gilrs: y

From the text of the task:

$\left \{ {{\frac{x}{y}=\frac{5}{7}} \atop {x+y=48 \rightarrow x=48-y}} \right.$

Replacing x:

$\frac{48-y}{y}=\frac{5}{7}\\
\\
7(48-y)=5y\\
\\
336-7y=5y\\
\\
12y=336\\
\\
y=\frac{336}{12}=28$

So there are 28 girs and 20 boys

7 0

4 years ago

Read 2 more answers

Match the graph to the solution of the system of equations.

kondaur [170]

Answer:

the first pic is 3,-4

the second pic is -1,4

the third pic is 3,-3

the last pic is 3,4

Step-by-step explanation:

The order in which you write x- and y-coordinates in an ordered pair is very important. The x-coordinate always comes first, followed by the y-coordinate

can i get brainliest

4 0

2 years ago

Which of the lists of letters all have rotational symmetry?

horsena [70]

Answer:

The alphabets Z, H, S, N and O have rotational symmetry.

4 0

3 years ago