Evaluate functions help !easy please help fast!

Mathematics

1 answer:

yarga [219]3 years ago

6 0

Answer:

Step-by-step explanation:

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Solve this system by graphing both<br> equations. Use the grid below.<br> {y = -2x + 6<br> {y= 4x

Free_Kalibri [48]

Answer:

For the given linear equation in two variables, the solution to the system of equations is (-2, -6).

Given :

y = x - 4 ---- (1)

y = 4x + 2----- (2)

Linear equations are nothing but yet another subset of "equations". Any linear calculations requiring more than one variable can be done with the help of linear equations.

The standard form of a linear equation in two variables is of the form. Here, x and y are variables, and a, b and c are constants.

From equations (1) and (2) we get,

x-4 = 4x + 2

x = - 2

Now, from equation (1) we get,

y = -2 -4

y = - 6

The solution to the system of equations is (-2, -6).

5 0

2 years ago

Sam is driving from Chicago to San Francisco, a distance of 2220 miles. He covers the first 192 miles in 4 hrs. At this rate, ho

Citrus2011 [14]

We can set it up like this:

$\frac{192}{4} = \frac{2220}{x}$

This states that Sam can drive 192 miles in 4 hours and 2220 miles in x hours. To solve, we can use cross-multiplication:

$192x = 2220*4 \\ 192x = 8880 \\ x = \frac{8880}{192} \\ x = 46.25$

It will take Sam 46.25 hours to drive the whole trip, or 46 hours and 15 minutes.

8 0

3 years ago

Azul bought 10 reams of paper at the store for a total of $84. The tax on

Leni [432]

Answer:

$8 per ream

Step-by-step explanation:

$84 (total) - $4 (tax) = $80

$80 (price before tax) / 10 (reams of paper) = $8 per ream

84 - 4 = 80 / 10 = 8

8 0

3 years ago