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2 years ago

HELP 15.Solve the equation, then choose the correct answer: –4(x – 3) = –8

Mathematics

2 answers:

Dmitry_Shevchenko [17]2 years ago

8 0

Answer:

x = 5

Step-by-step explanation:

-4 ( x - 3) = -8

-4x +12 = -8

-4x = -20

x = 5

Travka [436]2 years ago

8 0

Answer:
-20

Explanation:
Distribute first
-4x + 12 = -8
Subtract 12 on both sides
-4x +12 = -8
-12 -12
-4x = -20
Divide by -4 on both sides
-4x = -20
/-4 /-4
x = 5

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2 years ago

the ratio of cars to trucks at an auto dealer is 3/2. if there are 144 cars at the dealership, how many trucks are there?

lana [24]

Answer:

Step-by-step explanation:

for every 3 cars there is 2 trucks

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2 years ago

What is 1/8 as a percent and how did you get it. Also, what is 2/3 as a fraction and how did you get it.

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3 years ago

Mr. Young is offered an investment opportunity. Kyra says she will invest his money at a 6% simple interest rate over the next 7

gregori [183]

Answer:

$126

Step-by-step explanation:

Given that:

Investment is done as per Simple interest.

Principal = $3000

Time for which the investment is to done = 7 years

Rate of interest = 6%

To find:

Interest earned when the investment matures?

Solution:

Formula for Simple Interest :

$Simple\ Interest = \dfrac{PRT}{100}$

Where $P$ is the principal amount

$R$ is the Rate of Interest

$T$ is the time for which the investment is made

Putting the given values:

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Therefore, the answer is:

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2 years ago

Osama starts with a population of 1,000 amoebas that increases 30% in size every hour for a number of hours, h. The expression 1

Blizzard [7]

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Explanation:

From the given information,

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$1000\times \frac{30}{100} =1000\times 0.3$

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$1000(1+0.3)^h$

It is in the form of,

$P(t)=P_0(t)(1+r)^t$

Where $P_0(t)$ is the initial population, r is increasing rate, t is time and [tex(1+r)^t[/tex] is the growth factor after time t.

In the above equation 1000 is the initial population and $(1+0.3)^h$ is the growth factor after h hours. So the equation is product of of the initial population and the growth factor after h hours.

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2 years ago

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