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dolphi86 [110]
3 years ago
6

Eileen has 8 times as many dollars as her sister ,crystal. Eileen had 72 dollars .how much money does crystal have?

Mathematics
2 answers:
Komok [63]3 years ago
4 0

Answer:9

Step-by-step explanation:

Divide Eileen's money by 8

emmainna [20.7K]3 years ago
4 0

Answer:

$9

Step-by-step explanation:

Let Crystal dollar be X

Then Eileen will be 8X

And 8X = 72

Dividing through by 8

X = 72/8

X = 9

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7 0
3 years ago
The ratio of the number of A's in the class to B's in the class was 2:5. How many people got A's if there were 40 people who got
Umnica [9.8K]

Answer:

16 students got an A

Step-by-step explanation:

Set up an equation to compare the ratio to the scores:

\frac{2}{5} = \frac{x}{40}

Cross multiply:

80 = 5x

Divide each side by 5:

x = 16

Now, check if \frac{16}{40} = \frac{2}{5}

16/8 = 2

40/8 = 5

The ratios are the same! Therefore, 16 students got an A!

Hope this helps! Feel free to contact me if you have any questions :)

7 0
3 years ago
Read 2 more answers
Can i have some help (marked an Brainllest)
Marysya12 [62]
can you send me the answer
3 0
3 years ago
How do you solve:<br><br> f(x)=In(3x)?
LenKa [72]
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7 0
2 years ago
Can someone please answer this for me
kifflom [539]

Answer:

x = 7.5

y = 75

Step-by-step explanation:

if one angle of an equilateral triangle is 60 degrees (180/3) then 4x + 2x + 2x = 8x = 60, so x = 7.5

for y, we'll have to take the right triangle. we know that 2x = 15, and MON = 60, so 180 - 60 - 15 = 105.

180 - 105 will give us y, which is 75

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3 years ago
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