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REY [17]
3 years ago
13

Divide 480 into the ratio 2:5:3

Mathematics
1 answer:
vampirchik [111]3 years ago
4 0

Ratio 2 = 96

Ratio 5 = 240

Ratio 3 = 144

Step-by-step explanation:

Total ratio : 2+5+3 = 10

Divide 480 among the three ratios

\frac{2}{10}  \times 480 \\ \\   =  \frac{960}{10}  = 96

Second ratio

\frac{5}{10}  \times 480 \\   \\ =  \frac{2400}{10}  = 240

Third ratio

\frac{3}{10}  \times  \frac{480}{1}  \\ \\   =  \frac{1440}{10}  = 144

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18n squared + 57n -10
aniked [119]
Most people use the decomposition method but i dont know how to do that so i use the Joes method a method similar to decomp. but easier.
canadian way

Find gcf: None
complet trinomial: 18n^2+57-10
find the product=10(18)
                       =-180
find the sum     =57
-3 and 60 goes into both meaning if you multiply 3 and60 you get -180 and if you add them you get 57.

so (n-3)(n+60)
divide by a in this case it 18
so (n<u>-3</u>)(n+<u>60</u>)
       18     18
do not divide. treat it like a fraction so you reduce it to lowest terms
(n<u>-3</u>)(n<u>-3)
</u>   18   10
<u /> at this point its reduced to lowest terms so now you take the deniminator and move it beside the "n"

=(18n-3)(10n-3)

therefore your answer is (18n-3)(10n-3)
I hoped this helped :)
3 0
4 years ago
Find the unit rate please and thank you...
Gnom [1K]

Answer:

the unit rate is 1/10.

Step-by-step explanation:

4/40 divided by 4 equals 1/10

8 0
3 years ago
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Sid lives 3 miles north and 8 miles west of school. What is the direct distance from Sid's house to school?
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A because 3+8=11miles direct
3 0
4 years ago
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(PLEASE HELP !) Gabe spent $2000 to buy a piano for his music studio. He earns $25 per hour giving piano lessons to students. Le
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Answer:

280 hours

Step-by-step explanation:

Amount paid + profit = cost of a lesson per hour

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6 0
3 years ago
5. Distribute the expression -2(v-10)
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Answer: -2v-20

Step-by-step explanation: -2 times v is -2v

and -10 times -2 is -20.

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