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love history [14]
3 years ago
10

a machine packs boxes at a constant rate of 2/3 of a box every 1/2 minute. what is the number of boxes per minute that the machi

ne packs
Mathematics
1 answer:
Kruka [31]3 years ago
8 0
I think it's 2/3 x 2 = <em>4/6</em>
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Out of 10 students, 2 will be chosen to ride in a car instead of a van on an upcoming field trip. Which statement best describes
Rudiy27

Answer:

D

Step-by-step explanation:

Firstly, since it is a selection question, we shall be using a combination approach.

So here we are trying to select the best answer that describes that 2 out of 10 students are selected.

Let’s consider the scenario below;

selecting r out of n can be resolved using the combination nCr

= n!/(n-r)!r!

Now in this case, our n = 10 and r = 2.

Thus, 10C2, we have ;

10!/(10-2)!2! = 10!/8!2! = (10 * 9 * 8!)/8!2! = (10 *9)/2! = 90/2 = 45

Thus, 10C2 = 45

Here, the order of selection does not matter as we can select in random fashion. This makes option D correct

8 0
3 years ago
Bella has a stack of 41 bills (ones, fives, and tens) in an envelope. She has 3 less tens than fives and the quantity of ones do
AleksandrR [38]

Answer:

x+(x-3)+(2*x)=41

Step-by-step explanation:

We know that the other two bills are based of of a constant value for fives. Therefore, the fives can be x. There are 3 less tens than fives, so the number of tens equals x-3. We double the number of fives to get the number of ones, so the number of ones equals 2 times x. When we add all 3 of those together, we get our total number of 41. If you want to solve, you have to solve for x, then you can plug it back into the formula. I hope this helps!

3 0
3 years ago
Please hurry simplify the expression (15^1/5)^5
Lelu [443]

Answer:

15

Step-by-step explanation:

using the rule of exponents

(a^m)^{n} = a^{mn}

(15^{\frac{1}{5)} } ^{5} = 15^{(1/5(5))} = 15^{1} = 15


5 0
3 years ago
On the 405 freeway one can travel 65 miles per hour (mph), how many kilometers per hour (kph) is the car travelling
OverLord2011 [107]

Answer:

104.607kph

Step-by-step explanation:

Conversion from mph to kph = 1.609mph

3 0
2 years ago
Write a equation of a line that has the same slope as y=3x-1
Nikitich [7]

Answer:

A equation of a line that has the same slope as y=3x-1 would be maybe one like Y= 3x+1

hope this helps.

6 0
3 years ago
Read 2 more answers
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