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3 years ago

What does 81% 90% 80% and 34% average into 20 points

Mathematics

1 answer:

Alja [10]3 years ago

7 0

Answer:

71.25%.

Step-by-step explanation:

To find the average, we can simply add up the percentages and divide by how many there are.

We can do this by:

$\frac{81 + 90 + 80 + 34}{4}$ = 71.25%

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Find the exact value of sin <img src="https://tex.z-dn.net/?f=%20%20%5Cfrac%7B22%20pi%20%2F3%7D%20%20%20" id="TexFormula1" title

Nady [450]

Since $\dfrac{22\pi}3\equiv\dfrac{4\pi}3\mod2\pi$ , you have

$\sin\dfrac{22\pi}3=\sin\dfrac{4\pi}3=-\dfrac{\sqrt3}2$

6 0

4 years ago

Y=6-4(2). What is the value of y=6-4x when x=2

Arturiano [62]

Answer:

y = -2

Step-by-step explanation:

4 0

3 years ago

Needed help asap please and thank you so much !

Novosadov [1.4K]

Step-by-step explanation:

based on the story told I expected completely different questions.

but for the actually asked question the whole thing about gaining our not gaining weight is competent irrelevant. ignore it.

so, all we need to do is looking at the row totals.

27.4% of the participants took 1 vitamin.

49.5% of the participants took more than 1 vitamin.

so, 49.5% + 27.4% = 76.9% of all participants are taking vitamins in some form.

therefore, the second answer option is correct.

8 0

1 year ago

Explain how modeling partial products can be used to find the products of greater numbers ?

liq [111]

You can break large numbers into a sum of a multiple(s) of 10 and the last digit of the number. For example, you can break 26 as 20+6, or 157 as 100+50+7.

Then, using the distributive property, you can turn the original multiplication into a sum of easier multiplications. For example, suppose we want to multiply 26 and 37. This is quite challenging to do in your mind, but you can break the numbers as we said above:

$26\times 37=(20+6)(30+7) = 20\times 30+20\times 7+30\times 6+6\times 7$

All these multiplications are rather easy, because they either involve multiples of 10 of single-digit numbers:

$20\times 30+20\times 7+30\times 6+6\times 7 = 600+140+180+42=962$

3 0

3 years ago

Find the percent of change <br><br> 1970's: $0.79 <br> 2010's: $3.72

tatyana61 [14]

Answer:

471%

Step-by-step explanation:

If you divide 3.72 by .79 you get 4.7088...

Multiply by 100 to get your percentage is 470.88...

Rounded to nearest percentage is 471

hope this helps

7 0

2 years ago