Daniel grabbed a handful of heart shaped candies. 2/5 of the candy he grabbed were white. If there were 4 candies in his hand how many candies did he grab in all?

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Answer 1

Answer: Now i got the answer you do:
2/5 x4=8/5
8/5 + 2/5=10/5
which is 10 candies

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A manufacturer finds that the life expectancy of its best selling model of dishwashers is 11 years and the standard deviation is one year. The lifespans are approximately normally distributed . What percent of dishwasher models skill last from 9-13 years? A. About 68%. B.about 95%. C. About 34 percent. D. About 47.5 percent

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D About 47.5 percent

What is 2/300 as a decimal and percent

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2/300 = 0.006 yes it a decimal and percent

2/300 = 0.0067

2/300 x 100 = 0.67%

Pls help me on numbers 8 and 9 AND SHOW ME HOW U DID IT

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number 9 is C. (-1,0) :)

It's B. Whenever you multiply something by a fraction, it's the same as dividing it with the denominator. So basically 12*(1/3) = 12/3.

Who do you do the problem 7/9+1/7+3/5? please explain thoroughly.

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to add fractions you want to make sure that the bottom numbers are the same so we have to make them the same, but we have to make sure that the fractions are unchanged so we get the correct answer

so if we find out what number that 9,7, and 5 can all multiply into. we find that 9 times 7 times 5 or 315 is the number that will work

so to get them to all be over 315, we must multiply each fraction by a form of 1/1 or x/x or (number)/(same numbe as on top)

so 7/9 times (35/35)=245/315
1/7 times (45/45)=45/315
3/5 times (56/56)=168/315

we add them togther
245/315+45/315+168/315=(245+45+168)/315=458/315
this simplifies to 1 and 143/315

To add those fractions, you must find a common denominator for all of them. To find this, find a number that is a multiple of all three denominators. Then, multiply the top of the fraction by the same number you multiplied to get the common denominator. Finally you add all of the numerators together and keep the denomiator the same.

Example: 1/2+1/4+1/8

The demominators all are factors of the multiple 8. Therefore, we will use 8. Then, since we multiplied 2 by 4 to get eight for the first fraction, we will multiply the top number by 4 also. The new fraction will look like this: 4/8. After you have done that to all of the fractions, the equation will look like this: 4/8+2/8+1/8. Finally add all of the top numbers together and keep the denominator the same. The answer would be 7/8

Hope this helped :) Good luck

How does using a model help me multiply decimals by whole numbers?

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counting them it simple

Which of the following represents 645?A. 6 hundreds + 5 ones
B. 3 hundreds + 34 tens + 5 ones
C. 5 hundreds + 4 tens + 5 ones
D. 6 hundreds + 2 tens + 15 ones

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The answer would be D because you have 6 hundreds and the 2 tens and 15 ones because if you took out ten from the ones then you would get 3 tens and 5 ones. The hope I didn't confuse you

its D. because 6 = 600 so 2 tens + 600 = 620 so 15 plus all of the above is 645 :D hope this helped

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