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4 years ago

8

When 5 times a number is added to twice the number the result is 10. what is the number?

1 answer:

dlinn [17]4 years ago

8 0

Answer:

10/7

Step-by-step explanation:

5x+2x=10

7x=10

x=10/7

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Choose the fuction whose graph is give below

Vilka [71]

Charts can have different functionalities depending on the purpose or what you want to show with each chart. In general, graphs display data.

<h3>What is a graph?</h3>

A graph is a term to refer to the graphic representation of data related to some particular event or situation. There are several types of graphs such as:

Dot plots
Pie charts
Bar charts
Comparison charts
Among others

According to the above, to choose the right graph for our task we must identify what our main purpose is and select the type of graph that best suits our purpose.

Note: This question is incomplete because the is some information missing. However I can answer it based on my general prior knowledge.

Learn more about graphs in: brainly.com/question/14375099

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3 0

2 years ago

A food cooperative is a business that usually offers special prices on locally grown food and produce. Some are clubs and some a

Hoochie [10]

Answer:

The indifference point is 8 weeks.

Step-by-step explanation:

<u>First, we establish the total cost formula for each:</u>

x= number of weeks

Club:

Total cost= 20 + 15*x

Retail:

Total cost= 17.5*x

<u>Now, we equal both formulas and isolate x:</u>

20 + 15x = 17.5x

20 = 2.5x

8=x

The indifference point is 8 weeks.

<u>Prove:</u>

Total cost= 20 + 15*8= $140

Total cost= 17.5*8= $140

3 0

3 years ago

Describs how to identify the coordinate of an improper fraction on a number line.

Ainat [17]

Answer:

Step-by-step explanation:In order to graph the improper fraction you have to change it to a mixed number

say we have 4/3 ,as a mixed number it would be 1 1/3 so we would graph

the 1 1/3 at 1 and break the space in between 1 and 2 into 3 and mark the first 3rd tally

7 0

3 years ago

The average american family of four recycles how many pounds of material each year? 200 lbs 500 lbs 750 lbs 1000 lbs

gavmur [86]

The average american family of four recycles 1000 lbs of material each year.

3 0

4 years ago

My Notes OAsk Your Tea The radioactive isotope of lead, Pb-209, decays at a rate proportional to the amount present at time t an

Papessa [141]

Answer:

10.96 hours will take for 85% of the lead to decay.

Step-by-step explanation:

Suppose A represents the amount of Pb-209 at time t,

According to the question,

$\frac{dA}{dt}\propto A$

$\implies \frac{dA}{dt}=kA$

$\int \frac{dA}{A}=\int kdt$

$ln|A|=kt+C_1$

$A=e^{kt+C_1}$

$A=e^{C_1} e^{kt}$

$\implies A=C e^{kt}$

Let $A_0$ be the initial amount,

$A_0=C e^{0} = C$

$\implies A=A_0 e^{kt}$

Since, the half-life of 3.3 hours.

$\implies \frac{A_0}{2}=A_0 e^{3.3k}\implies e^{3.3k}=0.5\implies k=-0.21004$

$\implies A=A_0 e^{-0.21004t}$

Here, $A_0=1\text{ gram}$

$A=(100-85)\% \text{ of }A_0=15\%\text{ of }A_0=0.15A_0$

By substituting the values,

$0.15A_0=A_0 e^{-0.21004t}$

$0.15=e^{-0.21004t}$

$\implies t\approx 10.96\text{ hour}$

6 0

3 years ago