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insens350 [35]
3 years ago
5

Any help please thanks

Mathematics
2 answers:
vekshin13 years ago
6 0

Answer:

n=54

Step-by-step explanation:

Since this is a proportion problem, you have cross mulitply.

7n=9x42

7n=378

n=54

Dovator [93]3 years ago
6 0

Answer:

cross multiply

9×42=378

7×n=7n

n=378/7

n=54

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please solve for the function and the function only for both of these problems for 10 points! thank you so much! :)
lesya692 [45]

Answer:

y = 5x + 10

y = 0.75x + 4

Step-by-step explanation:

3 0
3 years ago
Fred went to his local zoo that featured 6 whale exhibits. If the zoo features 15 exhibits in total, then what percent of the zo
lorasvet [3.4K]

Answer:40%

Step-by-step explanation:

Given

The zoo featured 6 whales exhibits

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Percentage of Zoo's exhibits featuring whales

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7 0
3 years ago
a surveyor measures the distance to the two landmarks as shown in the diagram what is the distance d. between the landmarks​
Inessa [10]
<h3>The distance between two landmarks is 123 meters</h3>

<em><u>Solution:</u></em>

We have to find the distance between two landmarks

<em><u>Use the law of cosines</u></em>

The third side of a triangle can be found when we know two sides and the angle between them

c^2 = a^2 + b^2 - 2ab\ cos c

Here, angle between 90 meters and 130 meters is 65 degrees

From figure,

a = 90

b = 130

c = d

Therefore,

d^2 = 90^2 + 130^2 - 2(90)(130)\ cos 65\\\\d^2 = 8100 + 16900 - 23400\ cos\ 65\\\\d^2 = 25000 - 23400 \times 0.4226\\\\d^2 = 25000 - 9889.267\\\\d^2 = 15110.73\\\\d = 122.92\\\\d \approx 123

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8 0
4 years ago
Please answer this question full
ira [324]
(5x-2) + (2x+6) = 67, so we simplify and solve for x:
7x + 4 = 67 --> 7x = 63 --> x = 9

Now we substitute 9 for x in (5x-2):
5(9) - 2 --> 45 - 2 = 43

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Hope this Helps!
Brainliest Please!
7 0
3 years ago
Ve, Carpet sells for $36 per square yard. How much will 8 square yards cost?​
grandymaker [24]

Answer:

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Step-by-step explanation:

If each square yard of carpet is $36, you just have to multiply 8 by that to get the total.

4 0
3 years ago
Read 2 more answers
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