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3 years ago

A box 5 cm long, 4 cm wide and 6 cm high would have what volume?

2 answers:

6 0

$The\ volume\ of\ a\ box\ (cuboid;\ rectangular\ prism):V=l\times w\times h\\\\where:\ l-long;\ w-wide;\ h-high\\-----------------------------\\l=5cm;\ w=4cm;\ h=6cm\\\\therefore\\\\V=5\times4\times6=\huge\boxed{120\ (cm^3)}$

lapo4ka [179]3 years ago

3 0

With volume you multiply the 3 sides. So 5x4x6... First, 5x4= 20. Now 20x6=120 So the volume is 120 squared cm.

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Two motorcyclist A and B, started simultaneously moving towards each other. From the graph given below, find the distance each o

harina [27]

Answer:

Distance covered by motorcyclist A = 700 - 300 = 400 km

Distance covered by motorcyclist B = 300 - 0 = 300 km

The time before they met went for 5 hours

Average speed of motorcyclist A would be: 400/5 = 80 km/hour

Average speed of motorcyclist B would be : 300/5 = 60 km/hour

Step-by-step explanation:

In the given question first we have to find the distance covered by each of them.

Look at the graph. Motorcyclist A started from 700 km and met at 300 km with motorcyclist B

Thus the distance covered by motorcyclist A = 700 - 300 = 400 km

Motorcyclist B started from 0 km and met with A at point 300 km.

Thus the distance covered by motorcyclist B = 300 - 0 = 300 km

Now we have to find the time before they meet.

Look at the graph. Both motorcyclists met at point t=5

Thus the time before they met went for 5 hours

Now find out the average speed of motorcyclists

To find the average speed we require total distance and time.

Motorcyclist A covered 400 km within 5 hours

Average speed of motorcyclist A would be: 400/5 = 80 km/hour

Average speed of motorcyclist B would be : 300/5 = 60 km/hour

8 0

3 years ago

I think one of them is x-100.

vova2212 [387]

The second answer.
You have the first prize, x.
Then you have the second prize, which is x - 50.
Then you have the third prize, which is x - 50 -50, or x - 100.
So the total money is:
x + (x-50) + (x-100).

5 0

3 years ago

The number of customers in a grocery store is modeled by the function y -X? + 10x + 50, where y is

vova2212 [387]

Using the vertex of the quadratic function, it is found that:

a) The maximum number of customers in the store is at 12 P.M.

b) 75 customers are in the store at this time.

The number of customers in x hours after 7 AM is given by:

$y = -x^2 + 10x + 50$

Which is a quadratic equation with coefficients $a = -1, b = 10, c = 50$

Item a:

The maximum value, considering that a < 0, happens at:

$x_v = -\frac{b}{2a}$

Hence:

$x_v = -\frac{10}{2(-1)} = 5$

5 hours after 7 A.M, hence, the maximum number of customers in the store is at 12 P.M.

Item b:

The value is y(5), hence:

$y(5) = -(5)^2 + 10(5) + 50 = 75$

75 customers are in the store at this time.

A similar problem is given at brainly.com/question/24713268

7 0

2 years ago

A sample of bacteria is decaying according to a half-life model. If the sample begins with 700 bacteria, and after 10 minutes th

Papessa [141]

Answer:

18 minutes

Step-by-step explanation:

A = A₀ (½)^(t / T)

where A is the final amount,

A₀ is the initial amount,

t is the time,

and T is the half life.

A = 140 when t = 10. Solve for the half life:

140 = 700 (½)^(10 / T)

0.2 = ½^(10 / T)

log 0.2 = (10 / T) log 0.5

10 / T = 2.32

T = 4.31

When A = 40, t is:

40 = 700 (½)^(t / 4.31)

0.057 = ½^(t / 4.31)

log 0.057 = (t / 4.31) log 0.5

t / 4.31 = 4.13

t = 17.8

Rounded to the nearest whole number, it takes 18 minutes.

4 0

3 years ago

What is 4 1/5 - 1 4/5 =

Kamila [148]

Answer:

The exact form is 12/5 but the simplified one is 2 2/5

6 0

3 years ago

Read 2 more answers