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miss Akunina [59]
3 years ago
8

A ratio is a multiplicative comparison of two quantities expressed with the same units. The numbers in a ratio are called terms.

A ratio can be written in several different ways. 5 dogs to 3 cats 5 to 3 5 : 3 5 over 3 Ratios can be written to compare a part to a part, a part to the whole, or the whole to a part. Millie types 28 words in 1 minute. How many words can Millie type in 5 minutes?
Mathematics
1 answer:
irina1246 [14]3 years ago
3 0

Try looking, how many words can she find in 1 minute, then try to calculate how you got that into 5! It's easy if you think about it!

good luck!

                                                                           -KitKat

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Step-by-step explanation:

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You need a 30% alcohol solution. On hand, you have a 780 mL of a 15% alcohol mixture. You also have 90%
ycow [4]

Answer:

195 mL of the 90% solution

Step-by-step explanation:

Let the number of mL of 90% mixture = x

Hence, our equation is

780mL × 15% + x mL × 90% = (780mL + x) 30%

117 + 0.9x = 234 + 0.3x

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x = 117/0.6

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Therefore, You will need 195 mL of the 90% solution

5 0
3 years ago
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Answer:

c

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Factor this expression completely.
Orlov [11]

Answer:

A

Step-by-step explanation:

5 and 7 are both common factors of 35 and 40

Looking at the options you can eliminate C and D right away because 7 times 8 = 56 and not 40 like the problem is asking.

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Using the original equation (35x-40) as reference we see that it subtracts the two variables. Therefore leaving A as the answer

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