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3 years ago

Whats the point of intersection between these two lines?x+y=10x+2y=14

2 answers:

4 0

You have to make an equation that i forgot what was called but you just take
x+y=10 and multiply it by -2 so the y’s can cancel out

so you’ll end up with:

-2x-2y= -20
(+) x+2y=14

you’ll get : x = -6

then you plug in -6 for x, solve for y and your coordinates will be

(-6 , 10)

Alexus [3.1K]3 years ago

4 0

The point of intersection is the (4,6)

Explanation: 

We will find the solution of the two equations.

The two equations are:
x+y=10..(1)
x+2y=14 ...(ii)
subtracting equation (i) from (ii) we get,

x+2y -x-y = 14-10
y = 4

Now, from (i), x+y = 10
x +4 = 10
x = 10-4
x = 6

Hence, the intersection point is (4,6)

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olga nikolaevna [1]

A is your answer

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3 years ago

A car is traveling down a highway at a constant speed, described by the equation LaTeX: d=65td=65t, where represents the distanc

maks197457 [2]

Answer: The car travels 97.5 miles in 1.5 hour.

Step-by-step explanation:

Given: A car is traveling down a highway at a constant speed, described by the equation , described by the equation $d=65t$ , where represents the distance, in miles, that the car travels at this speed in t hours.

To find : Number of miles car travel in 1.5 hour.

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3 years ago

Carol is going to make a wooden pyramid and then paint it. She drew the net of a square pyramid as shown below to help her plan

rodikova [14]

The given pyramid's total surface area is 3. 24.0 square feet.

Step-by-step explanation:

Step 1:

To calculate the surface area of the given figure, we need to find the surface areas of the different shapes in the figure.

There are 3 triangles and 1 square in the figure.

Step 2:

All the triangles are similar.

The surface area of a triangle = $\frac{1}{2} (baselength)(height).$

The similar triangles have a base length of 3 feet and a height of 2.5 feet.

The surface area of 1 similar triangle = $\frac{1}{2} (3)(2.5)= 3.75$ square feet.

The surface area for all the similar triangles = $3.75 (4) = 15$ square feet.

Step 3:

The surface area of a square is the square of its side length. The square has a side length of 3 feet.

The surface area of the square = $a^{2} = 3^{2} =9$ square feet.

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3 years ago

I need some help with this one I'm lost!

SpyIntel [72]

Answer:

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Step-by-step explanation:

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2 years ago

A nest of ants has been growing exponentially in such a way that it's population,P, as a function increasing on average more or

ivolga24 [154]

Not sure question is complete, assumptions however

Answer and explanation:

Given the above, the function of the population of the ants can be modelled thus:

P(x)= 1600x

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3 years ago