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3 years ago

What is the value of x?

Mathematics

2 answers:

Taya2010 [7]3 years ago

8 0

mean a value that is not yet known.

It is called a "variable" or sometimes an "unknown".

In x + 2 = 7, x is a variable, but we can work out its value if we try!

A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.

See: Variable

Introduction to Algebra

PilotLPTM [1.2K]3 years ago

3 0

Answer:

360=2(x+30)+2x

360=2x+60+2x

300=4x

x=75

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Veseljchak [2.6K]

Car A Car B

d=rt d = rt

d = ra * 2.4 d = rb 4

ra = rb+22

distances are the same so set the equations equal

ra * 2.4 =rb *4

substitue in for ra

(rb+22) 2.4 =rb *4

distribute

2.4 rb +52.8 = 4 rb

subtract 2.4 rb from each side

52.8 = 1.6 rb

33 = rb

Car b travels at 33 miles per hour

Car a = 33+22

Car a = 55 miles per hour

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2 years ago

Whats: 2(x-3)+36 please answer asap

Hitman42 [59]

Answer:

x = 15

Step-by-step explanation:

2(x+3)=36

x+3=18

x=15

I hope this helps! have a wonderful rest of ur day :)

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2 years ago

Read 2 more answers

Which if the following best describes the graph below?

NARA [144]

Answer:

is a one to one function

Step-by-step explanation:

it is a one to one function

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2 years ago

Micheal took his brother to the movies. Micheal paid regular price, but it cost $2 less for his brother at the child price. It c

iren [92.7K]

It cost $5 for his brother's ticket.

Step-by-step explanation:

Let,

Micheal's ticket price= x

His brother ticket price = y

According to given statement;

x+y=12 Eqn 1

y = x-2 Eqn 2

Putting value of y from Eqn 2 in Eqn 1

$x+(x-2)=12\\x+x-2=12\\2x=12+2\\2x=14\\$

Dividing both sides by 2;

$\frac{2x}{2}=\frac{14}{2}\\x=7$

Putting x=7 in Eqn 2

$y=7-2\\y=5$

It cost $5 for his brother's ticket.

Keywords: linear equation, substitution method

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3 years ago

mrs cindy had2/3 of a cake .she divided the cake equally among her 3 children. what fraction of the cake did each children get?

satela [25.4K]

Each kid would get 2/9 of the cake

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2 years ago