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creativ13 [48]
3 years ago
15

Matthew made a fruit salad, in which the ratio of blueberries to red grapes is 8:6. If Matthew used 28 blueberries, how many red

grapes did he use? [Type your answer as a number.]
PLS ANSWER FAST
Mathematics
1 answer:
Inga [223]3 years ago
4 0

Answer:

Step-by-step explanation:

Let's look at some other ratios that equal 8:6  We could increase them or decrease them.  For instance if we cut one in half we cut the other one in half, so 8:6 would be the same ratio as 4:3.  With the same thinking if we double one we double the other so 8:6 s the same ratio as  16:12.  Now, we want to go from 8 to 28.  What do we multiply 8 by to get to it?  Or, it might be easier to use 4:3 and see what you multiply 4 by.  Then you multiply 3 by that same number to get the other number.

Let me know if that doesn't make sense.  

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8 0
3 years ago
180 people filled out a survey about their favorite color. 95 of the respondents were female. 21 males responded that their favo
faltersainse [42]
If there were 180 taking the survey and 95 were female, that means that there were 85 males.

Since only 21 of the males said red was their favorite color, we can write the fraction 21/85.

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6 0
3 years ago
HURRY PLEASE
erik [133]

To compute how many groups of k elements we can extract out of a group of n elements, we can use the binomial coefficient:

\binom{n}{k} = \dfrac{n!}{k!(n-k)!}

where the factorial is defined as

n! = n(n-1)(n-2)(n-3)\ldots 3\cdot 2

So, this is the number of possible quintuplet out of 50 numbers:

\binom{50}{5} = \dfrac{50!}{5!45!}= \dfrac{50\cdot 49\cdot 48 \cdot 47 \cdot 46}{5\cdot 4\cdot 3\cdot 2} = 2118760

Similarly, this is the number of possible groups of six numbers out of 60:

\binom{60}{6} = \dfrac{60!}{6!54!}= \dfrac{60\cdot 59\cdot 58 \cdot 57 \cdot 56 \cdot 55}{6\cdot 5\cdot 4\cdot 3\cdot 2} = 50063860

So, you win with a combination out of 2118760 in state A, and with a combination every 50063860 in state B this means that winning in state A is easier with a ratio of

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6 0
4 years ago
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jek_recluse [69]

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Multiply both sides by 5

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Multiply both sides by -1

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Switch sides

<u>x < 45 </u>

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3 years ago
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Answer:

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4 0
3 years ago
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