Mathematics, 25.09.2019 05:00 ballerboles4747

What's this question? ? i can't figure it out

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Answer from: amh926292

$\frac{1}{2}$

Step-by-step explanation:

We can see that the denominators are not the same. You cannot do that when adding or subtracting fractions.

So you must LCD (Least common denominator)

Multiply the denominators to get LCD:

5 * 10 = 50

So our denominators are 50.

Now we do crisscross multiplication:

$\frac{4 * 10}{50} - \frac{3 * 5}{50}$

$\frac{40}{50} - \frac{15}{50}$

$\frac{25}{50}$

Simplify:

$\frac{25 / 2}{50 / 2}$

$\frac{1}{2}$

Answer from: duwaunacozad

1/2

Step-by-step explanation: To subtract unlike fractions such as 4/5 - 3/10, first we need to find a common denominator. The common denominator of 5 and 10 is simply the least common multiple of 5 and 10 which is 10.

To get 10 in the denominator of 4/5, we multiply the numerator and denominator by 2 to get 8/10. Notice that the second fraction already has 10 in the denominator so we can leave that one alone.

Now, we have our two fractions which are 8/10 and 3/10.

8/10 - 3/10 = 5/10 = 1/2

Answer from: Quest

Move the decimal behind it

Answer from: Quest

"it's not the heat, it's the humidity". that's a partly valid phrase you may have heard in the summer, but it's actually both. the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature. this has important considerations for the human body's comfort. when the body gets too hot, it begins to perspire or sweat to cool itself off. if the perspiration is not able to evaporate, the body cannot regulate its temperature. evaporation is a cooling process. when perspiration is evaporated off the body, it effectively reduces the body's temperature. when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases. in other words, the human body feels warmer in humid conditions. the opposite is true when the relative humidity decreases because the rate of perspiration increases. the body actually feels cooler in arid conditions. there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

75% of the temperatures are below what value? how do you know? 75% of the temperatures are above w

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