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2 years ago

HELP FAST! A) 180 = 30 + (x + 60) B) 180 + 30 = x + 60 C) 90 = 30 + (x + 60)

Mathematics

2 answers:

Fantom [35]2 years ago

6 0

A) 180 = 30 (x+60) :))) of

Tju [1.3M]2 years ago

6 0

Answer:

a) x = 90

b) x = 150

c) x = 0

Step-by-step explanation:

a) 180 = (x) + (30 + 60) simplify both steps of equation

180 = x + 90 combine the like terms

x + 90 = 180 flip the equation

x + 90 - 90 = 180 - 90 subtract 90 from both sides

x = 90

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2 years ago

The average score of all pro golfers for a particular course has a mean of 70 and a standard deviation of 3.0 (Think of these as

bija089 [108]

Answer:

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Step-by-step explanation:

We are given the following information in the question:

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8 0

2 years ago

Answer correclty PLZZZ

ioda

Answer: option C is the correct answer

Step-by-step explanation:

The system of linear equations is

10x + 7y = 12 - - - - - - - 1

8x + 7y = 18 - - - - - - - 2

Since the coefficient of y is the same in equation 1 and equation 2, we will eliminate y by subtracting equation 2 from equation 1, it becomes

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Substituting x = - 3 into equation 1, it becomes

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-30 + 7y = 12

Let the constants be on the right hand side and the term containing y be on the left hand side. It becomes

7y = 12 + 30

7y = 42

y = 42/7

y = 6

C) (−3, 6)

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2 years ago

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kirill115 [55]

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2 years ago