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3 years ago

Find X.

Mathematics

2 answers:

seropon [69]3 years ago

6 0

Answer:

x = 118 degrees approximately

Step-by-step explanation:

Here, we want to get the measure of the angle marked x

We shall use the side facing it and apply the cosine rule

The side facing the angle measures 90

Thus, we have it that;

90^2 = 55^2 + 50^2 - 2(50)(55) cos X

2575 = - -5,500 cos X

X = cos^-1(-2575/5,500)

X = 118 degrees approximately

musickatia [10]3 years ago

6 0

Answer:

Step-by-step explanation:

y=32.7

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The total land area of the world is about fifty-seven million, two hundred eighty thousand square miles. Write that number

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The total land area of the world is about fifty-seven million, two hundred eighty thousand square miles is 57, 280, 000 square miles

Solution:

Given that, we have to write the given words in number

The total land area of the world is about fifty-seven million, two hundred eighty thousand square miles

The number of zeros in million is 6

Here given that 57 million

So, 57 million means 57, followed by 6 digits

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2 years ago

Miguel runs 4 miles in 30 minutes. At the same rate, how many minutes would he take to run 10 miles?

Andrei [34K]

Answer:

75

Step-by-step explanation:

Use a proportion.

4 miles is to 30 minutes as 10 miles is x minutes.

4/30 = 10/x

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Answer: 75

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2 years ago

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7 pounds of plums make 8 rolls of fruit leather. If every batch of fruit leather requires the

serg [7]

Answer: 17.5 lbs of plums are required to make 20 rolls of fruit leather.

Step-by-step explanation:

Since 7 lbs of plums yield 8 rolls of fruit leather, 1 lb will yield 1 1/7 rolls of fruit leather.

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2 years ago

Lily has $44.77 in her checking account at the end of October. She wants to open a savings account and put 25% of the amount she

Elza [17]

Answer:

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Step-by-step explanation:

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2 years ago

A textbook store sold a combined total of 217 biology and sociology textbooks in a week. The number of biology textbooks sold wa

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Answer:

79 sociology textbooks and 138 biology textbooks

Step-by-step explanation:

Create a system of equations, where b is the number of biology books and s is the number of sociology books:

b + s = 217

b = s + 59

Solve by substitution by substituting s + 59 for b into the first equation:

b + s = 217

s + 59 + s = 217

Add like terms and solve for s:

2s = 158

s = 79

So, there were 79 sociology books. To find the number of biology books, substitute 79 in for s into the equation b = s + 59

b = s + 59

b = 79 + 59

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So, 79 sociology textbooks and 138 biology textbooks were sold.

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3 years ago