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3 years ago

6x+3y=6 what does x equal

Mathematics

1 answer:

Archy [21]3 years ago

3 0

Answer:

x=1-.5y

Step-by-step explanation:

6x+3y=6

6x=6-3y

x=1-.5y

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What is 1/4 times 2 -9

krek1111 [17]

Answer:

-8.5

Step-by-step explanation:

1/4 times 2= 0.5

0.5-9=-8.5

Hope this helps :D

5 0

4 years ago

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6.5 kg to 3.9 kg, what was the percent decrease

igomit [66]

Answer: 40%

Step-by-step explanation:

Given,

Initial mass = 6.5kg

final mass = 3.9kg

So, Change in mass = initial mass - final mass

= 6.5 - 3.9

= 2.6 kg

and,

Change in percentage of mass = $\frac{change in mass}{original mass} * 100$

Change in percentage of mass = $\frac{2.6}{6.5} * 100$

= 40

6 0

3 years ago

At the beginning of an environmental study, a forest covered an area of 1500 km2 . Since then, this area has decreased by 9.8% e

fredd [130]

Answer:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

Step-by-step explanation:

In this problem, the initial area of the forest at time t = 0 is

$A_0 = 1500 km^2$

After every year, the area of the forest decreases by 9.8%: this means that the area of the forest every year is (100%-9.8%=90.2%) of the area of the previous year.

So for instance, after 1 year, the area is

$A_1 = A_0 \cdot \frac{90.2}{100}=0.902 A_0$

After 2 years,

$A_2=0.902 A_1 = 0.902(0.902A_0)=(0.902)^2 A_0$

And so on. So, after t years, the area of the forest will be

$A(t)=(0.902)^t A_0$

And by substituting the value of A0, we can find an explicit expression:

$A(t)=(0.902)^t \cdot 1500$ $[km^2]$

8 0

4 years ago

A dot plot is a graph that displays data by using dots plotted above a number line.

Vikentia [17]

True, because dot plots usually look like this

0 0

0 0 0 0 0

__________________________________

1 2 3 4 5

As you can see, the dots are above the line.

8 0

2 years ago

How to find the percent of change of 37,065 to 26,102

Vesnalui [34]

Answer:

just subtract and u should get 10,963

4 0

4 years ago

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