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3 years ago

How many combinations are possible? Assume the items are distinct. 10 items chosen 10 at a time

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

3 0

About 100 combinations are possible because u have to do 10x10

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A scale diagram of a garden shows the length as 14.5cm. If the scale is 1:150, what is the actual length? The garden is _______m

Katena32 [7]

Answer:

21.75m

Step-by-step explanation:

14.5×150 =2175cm

1m =100cm

to convert into m divide 2175 by 100

=21.75m

4 0

3 years ago

Helps me! find the area please. ＼（〇_ｏ）／

Anon25 [30]

We must remember the equation to find the area of a trapezoid first.
Area = $\frac{A+B}{2} *H$
A and B are the bases (6 and 12)
The height is 6 for each trapezoid
Now Solve!
====================================================================
SOLVING...

Area = $\frac{6 + 12}{2} * 6$
Area = $\frac{18}{2} * 6$
Area = 9 * 6
Area = 54

Since there are two trapezoids, multiply 54 by 2
54 x 2 = 108
Area = 108

7 0

3 years ago

The distance from Earth to the moon is about 4×10 5 kilometers. The distance from Earth to Mars is about 5×10 7 kilometers. Use

VashaNatasha [74]

The difference is two order of magnitudes, write down in the space 200

3 0

3 years ago

Mais family drinks a total of 10 gallons of milk every 6 weeks.

Firdavs [7]

Answer:

1 2/3

Step-by-step explanation:

Mai's family drinks a total of 10 gallons of milk every 6 weeks so every week they drink 10/6 = 1 4/6 or 1 2/3 gallons of milk

8 0

3 years ago

Sam needs to make a long-distance call from a pay phone. With his prepaid phone card, he will be charged $1.00 to connect and $0

Mademuasel [1]

Answer: The required system of equations representing the given situation is

$y=1+0.5x\\\\y=3+0.25x$

Step-by-step explanation: Given that Sam needs to make a long-distance call from a pay phone.

We are to write a system to represent the situation.

Let x represent the number of minutes Sam talked on the phone and y represents the total amount that he paid for the call.

According to the given information,

with prepaid phone card, Sam will be charged $1.00 to connect and $0.50 per minute.

So, the equation representing this situation is

$y=1+0.5x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

Also, if Sam places a collect call with the operator he will be charged $3.00 to connect and $0.25 per minute.

So, the equation representing this situation is

$y=3+0.25x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)$

Thus, the required system of equations representing the given situation is

$y=1+0.5x\\\\y=3+0.25x$

3 0

3 years ago