I NEED TO KNOW THIS Q

Mathematics

2 answers:

Nikolay [14]3 years ago

6 0

See picture for explanation.

IRISSAK [1]3 years ago

3 0

To find where they intersect you need to find where they equal each other. Since you already know what y equals in terms of x from the blue equation you can plug that into the red equation to solve for x
$x + 4(2x - 6) = 12 \\ x + 8x - 24 = 12 \\ 9x = 36 \\ x = 4$
Now that we know what x is equal to we can plug it into the blue equation to solve for what y is equal to
$y = 2(4) - 6 \\ y = 8 - 6 \\ y = 2$
The place where the two lines intersect is at the coordinate (4,2)

You might be interested in

Can someone please help me!?!?!?

sineoko [7]

3. Alt. Interior Angles

4. definition of midpoint

5 0

2 years ago

The population of a city is growing at an average rate of 3% per year in 1990 the population was 45 000.

Nonamiya [84]

This is an exponential growth/decay problem...

F=Ir^t, F=final value, I=initial value, r=rate, t=time, in this case:

F=I(1.03)^t and they just want to know when F=2I so

2=1.03^t take natural log of both sides...

ln2=t*ln1.03

t=ln2/(ln1.03)

t≈23.45

So it will take approximately 23.45 years for the population to double..

1990+23.45=2013.45

So during the year of 2013 the population will have double from its 1990 level.

5 0

3 years ago

Margo freezes 8 cups of strawberries if this is 2/3 of the total strawberries that she picked how many cups of strawberries did

Goryan [66]

Answer:

12 cups.

Step-by-step explanation:

Let x be the total cups of strawberries picked by Margo.

We have been given that Margo freezes 8 cups of strawberries and this is 2/3 of the total strawberries that she picked.

We need to find x such that 2/3 of x equals 8. We can represent this information in an equation as:

$\frac{2}{3}x=8$