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Nataly [62]
3 years ago
13

Help 20 points just ask

Mathematics
2 answers:
balandron [24]3 years ago
8 0

Answer:

133

Step-by-step explanation:

If he cleaned 38 windows in 2 hours then he cleaned:

38 win / 2 hours = 19 windows per hour.

If he goes for 7 hours then he cleans a total of: 19 * 7 = 133 windows in 7 hours.

kari74 [83]3 years ago
3 0

Answer:

proportion:

38/2•x/7

cross multiply:

(7)(38)=2x

simplify:

266=2x

divide:

x=133

133 windows

Step-by-step explanation:

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================================================

Explanation:

vowels = {a, e, i, o, u}

consonants = anything but a vowel (eg: the letter R)

There are 26 letters in the English alphabet. Five of which are vowels, so there are 26-5 = 21 consonants.

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------------------------------

The other ratios will follow a similar idea as mentioned in the previous section.

To get the ratio of vowels to total letters, we list the number of vowels first (5) follow by the number of letters (26). A colon separates the two numbers to form the ratio 5:26

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-------------------------------

Like in the previous sections, we'll glue together two numbers to form a ratio. In this case, we have 26 letters glued with 21 consonants to form the ratio 26:21 and this represents the ratio of total letters to consonants.

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