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Andru [333]
3 years ago
15

Can someone please help me I will be forever grateful

Mathematics
1 answer:
Dominik [7]3 years ago
5 0

Answer:

66 feet

Step-by-step explanation:

30+30=30 feet

6+6=12 yards

1 yard=3 feet

12*3=36

30+36=66

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3 years ago
Five times a number is the same as 30 more than 8 times the number. Find the number. If n is "the number," which equation could
Sergeu [11.5K]

Answer:

C. 5n = 8n + 30

Step-by-step explanation:

5 times a number = 5n

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If those expressions are equal, then:

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5 0
3 years ago
In a survey of some farmers of a community, 70% of them are found cultivating rice, 60% cultivating wheat, 20% are not cultivati
yan [13]

Answer + Step-by-step explanation:

let R be the set of farmers cultivating rice.

let W be the set of farmers cultivating wheat.

let n be the total number of farmers.

i) Check the attachment.

ii) Card R∪W = Card R + Card W - Card R∩W

Note : Card R denotes the number of farmers cultivating rice.

CardR\cup W=n-\frac{20}{100} n = \frac{80}{100} n

CardR=\frac{70}{100} n

CardW=\frac{60}{100}n

CardR \cap W=450

Card R∪W = Card R + Card W - Card R∩W

\Longleftrightarrow \frac{80}{100} n=\frac{70}{100} n + \frac{60}{100} n-450

\Longleftrightarrow \frac{50}{100} n=450

\Longleftrightarrow  n= 2 \times 450 = 900

iiI) the number of farmers who are cultivating rice only :

900\times \frac{70}{100} -450=180

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2 years ago
Hank's speedometer reads 60 miles per hour, but during a road test he finds that he was actually driving 50 miles per hour. What
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The percent error in the speeds are 7.1428. Hope this helps!
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3 years ago
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