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Temka [501]
3 years ago
5

It ok Khalid 90 minutes to complete 40 task. Which answer choice is an equivalent rate.

Mathematics
1 answer:
solniwko [45]3 years ago
5 0

Answer:

its d

Step-by-step explanation:

he did one task in 2.25 mins so multiply by 10

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What is the answer to
katovenus [111]

Answer:

y\geq2

Step-by-step explanation:

1. switch sides

2. distribute

3. simply (combine like terms) in this case it would go to 22y

4. add 48 to both sides

5. simplify

6. divide

y\geq2

6 0
4 years ago
20 to 25 percent change
inna [77]
A change from 20 to 25 represents a positive change (increase) of 25% Percent change = [(20 - 25) / 20] x 100 = 25 % (increase)Where: 20 is the old value and 25 is the new value. In this case we have a positive change (increase) of 25 percent because the new value is greater than the old value.

Hope this helps :)

7 0
3 years ago
Read 2 more answers
) Suppose that a subset of five balls will be randomly selected from an urn containing amber, blue, and green balls. (a) If the
vazorg [7]

Answer:

0.0023 = 0.23% probability that all 5 balls selected will be the same color

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the balls are selected is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Desired outcomes:

Either 5 amber from a set of 6, or 5 blue from a set of 5. So

D = C_{6,5} + C_{5,5} = \frac{6!}{5!1!} + \frac{5!}{5!0!} = 6 + 1 = 7

Total outcomes:

5 balls selected from a set of 6 + 5 + 4 = 15. So

T = C_{15,5} = \frac{15!}{5!10!} = 3003

Probability:

p = \frac{D}{T} = \frac{7}{3003} = 0.0023

0.0023 = 0.23% probability that all 5 balls selected will be the same color

5 0
3 years ago
I need help with #14 & #15 quickly!
arsen [322]

Answer:

#14 \frac{3m^{12} n^{10}-m^{8} n^{10}}4\\   #15 -448y^{32}x^{5}

Step-by-step explanation with pictures.

I hope this helps! :D

4 0
3 years ago
The power 9 squared is equivalent to 81. What is the value of 9 Superscript negative 2? Negative 81 Negative 9 StartFraction 1 O
Elodia [21]

Answer:

1/81

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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