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3 years ago

A different way to solve a mixed-number addition problem

Mathematics

1 answer:

kompoz [17]3 years ago

3 0

Answer:

Step-by-step explanation:

example :

2 1/4 + 3 1/2

you can either turn them to improper fractions, find the common denominator, and then add them and then convert that answer to a mixed number

2 1/4 + 3 1/2 = 9/4 + 7/2 = 9/4 + 14/4 = 23/4 = 5 3/4

separate them....add the whole numbers, then the fractions

2 1/4 + 3 1/2 .......2 + 3 = 5.....1/4 + 1/2 = 1/4 + 2/4 = 3/4.....now put them back together and u get : 5 3/4

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3 years ago

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3 years ago

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vfiekz [6]

Answer:

a = 14 km

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh where b is the base and h is the height

112.7 = 1/2 ( a) 16.1

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3 years ago

A bag contains 4 red marbles, 8 blue marbles and 2 green marbles. If two marbles are drawn out of the bag, what is the probabili

mina [271]

Answer:

The probability, to the nearest 10th of a percent, that both marbles drawn will be red is 28.5%

Step-by-step explanation:

Number of red marbles = 4

Number of blue marbles = 8

Number of Green marbles = 2

Total number of marbles = 4+8+2 =14

We need to find the probability, to the nearest 10th of a percent, that both marbles drawn will be red?

The formula used will be: $Probability=\frac{Number\:of\:favourable\:outcomes}{Number\:of\;possible\:outcomes}\\$

In our case, Number of favourable outcomes = 4 (as red marbles are drawn)

Number of possible outcome = 14 (Total number of marbles)

The probability will be:

$Probability=\frac{Number\:of\:favourable\:outcomes}{Number\:of\;possible\:outcomes}\\\\Probability=\frac{4}{14}\\ Probability=0.2857\\$

Now, calculating nearest 10th of a percent

$Probability = 0.2857*100\\Probability=28.5%$

So, the probability, to the nearest 10th of a percent, that both marbles drawn will be red is 28.5%

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3 years ago

What is the fifteenth term in the sequence 12, 24, 36, 48, 60…?

spayn [35]

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2 years ago