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2 years ago

Subtract. Use models if needed. (12x + 3) – (2x + 10)

Mathematics

2 answers:

Galina-37 [17]2 years ago

4 0

1.)combine like terms: 12-2x=10x 3-10=-7

10x-7

Serhud [2]2 years ago

4 0

Answer:

A. 10x – 7

Step-by-step explanation:

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Find the value of x.

lawyer [7]

Answer:

$\huge\boxed{x=\sqrt{70}}$

Step-by-step explanation:

ΔABC and ΔADB are similar (AAA).

Therefore the corresponging sides are in proportion:

$\dfrac{AB}{AD}=\dfrac{AC}{AB}$

Substitute:

$AB=x\\AC=7+3=10\\AD=7$

$\dfrac{x}{7}=\dfrac{10}{x}$ <em>cross multiply</em>

$(x)(x)=(7)(10)\\\\x^2=70\to x=\sqrt{70}$

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3 years ago

1. If a house cost $200,000 in Las Vegas in 2012 and there was a 20.7% increase in houses from 2012 to 2013, what is the price o

scZoUnD [109]

Answer:

$241,400

Step-by-step explanation:

House costs: $200,000

Percentage increase: 20.7%

This means that the cost of the house increased by that percentage from 2012 to 2013. Therefore the following,

200,000 x 20.7/100 = 41,400

So the value of the house increased by $41,400 in this year.

Now we add to evaluate the total price of the house in 2013.

200,000 + 41,400 = 241,400

House price: $241,400

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2 years ago

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A Jeep uses 14.6 gallons of gas to travel 328.5 miles.

PilotLPTM [1.2K]

Answer:

22.5

Step-by-step explanation: you just divide the two numbers :)

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3 years ago

100 POINTS Coronavirus cases rose from 23 cases on October 3rd to 103 cases on November 3rd .What was the percent increase based

evablogger [386]

Answer:

<h2><em>348% increase</em></h2>

Step-by-step explanation:

103 - 23 / 23 = 3.47826

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2 years ago

Two percent of half a number is 5. What is the number ?

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Answer:

500

Step-by-step explanation:

If 1% is 2.5 then 100% is 250. Since 250 is half of a number, you went then multiply by 2 to double that number which is 500.

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2 years ago

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