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2 years ago

The sum of 117 and 12 times a number is negative 45. What is the number? | I

Mathematics

1 answer:

MissTica2 years ago

7 0

Answer: - .35 or 13.5 depending on how the equation is written.

Step-by-step explanation:

-45 = (117+12)x

-45 = (129)x

-45/129 = x

roughly = - .35

If that's not it we can do:

-45 = 117+12(x)

-162 = 12x

x = 13.5

You might be interested in

State one rational number between -0.45 and -0.46 (answer must be in decimal form.)

seraphim [82]

A rational number between the two given ones is -0.455, such that:

-0.45 > -0.455 > -0.46

<h3>How to find a rational number between the two given ones?</h3>

A rational number is any number that can be written as a quotient between two integer numbers.

Particularly, any number with a finite number of digits after the decimal point is also a rational number.

So to find a rational number between -0.45 and -0.46 we could se:

-0.455, such that:

-0.45 > -0.455 > -0.46

Learn more about rational numbers:

brainly.com/question/12088221

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6 0

1 year ago

Light bulbs manufactured at a certain factory have a 3% probability of being defective. What is the probability that 5 out of a

Eddi Din [679]

There is a 3% chance of each light bulb being defective, and we only want 5 of them to be defective. The chance is then:

$3\%^5*97\%^{25}$

Or this really small number: 1.13474853e-8

5 0

3 years ago

on a certain hot Summer's Day 613 people use the public swimming pool the daily prices are $1.75 for children $2.25 for adults t

Elodia [21]

389 children and 224 adults were at the pool that day.

Step-by-step explanation:

Cost of one child ticket = $1.75

Cost of one adult ticket = $2.25

Total people = 613

Total receipts worth = $1184.75

Let,

Number of children = x

Number of adults = y

According to given statement;

x+y=613 Eqn 1

1.75x+2.25y=1184.75 Eqn 2

Multiplying Eqn 1 by 1.75

$1.75(x+y=613)\\1.75x+1.75y=1072.75\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(1.75x+2.25y)-(1.75x+1.75y)=1184.75-1072.75\\1.75x+2.25y-1.75x-1.75y=112.00\\0.50y=112.00$

Dividing both sides by 0.50

$\frac{0.50y}{0.50}=\frac{112.00}{0.50}\\y=224$

Putting y=224 in Eqn 1

$x+224=613\\x=613-224\\x=389\\$

389 children and 224 adults were at the pool that day.

Keywords: linear equation, subtraction

Learn more about linear equations at:

#LearnwithBrainly

6 0

3 years ago

Please help! ( ;v;)/

OleMash [197]

Answer:

C:40

Step-by-step explanatio:

c²=h²-c²

c²=58²-42²

√c²= √3364- 1764

C=√1600

c=40

3 0

2 years ago

A ball is dropped from a height of 100 cm. The rebound heights to the nearest centimeter are 60, 36, 22, .... What is the total

Nataly_w [17]

Answer:

Step-by-step explanation:

5 0

2 years ago

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