Find the x- and y-intercepts of the graph of – 10x + 3y = 10. State your

Mathematics

1 answer:

Rom4ik [11]3 years ago

7 0

I hope you see what I did there. if you still confused, comment and I'll help

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WILL GIVE 40 BRAINLY

irina [24]

Answer:

$(3,2)$

Step-by-step explanation:

The method of variable substitution is a way of solving a system of equations. It involves solving one equation for a variable and then substituting in the expression that represents the value of the solved variable into the other equation. After doing so, one can solve for the unknown variable and then backsolve for the other variable.

$y=-2x+8\\y=x-1$

In this system, the second equation is already solved for (y), thus one can substitute that expression into the other equation in the system.

$x-1 = -2x + 8$

Now solve using inverse operations,

$x -1 = -2x + 8\\+2x\\\\3x - 1 = 8\\+1\\\\3x =9\\/3\\\\x = 3$

Backsolve to find the value of (y), substitute in the value of (x), and solve for the value of (y).

$y=x - 1\\$

Substitute,

$y=(3)-1$

Solve,

$y=2$

Thus, the answer to this system of equations is the following, $(3,2)$ .

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3 years ago

A shopper paid$67.36 including tax for an item marked $62.95. What should she pay for another item marked $82?

Jlenok [28]

Answer:

153.77

Step-by-step explanation:

First, you subtract the item's original price from the price with tax. Then, you use the tax price from the subtraction, (your answer) and add it to the 82$. Last, add the $67.36 with $86.41 (the tax added to the $82) and you will get your answer, $153.77

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3 years ago

A bicycle has a speed of 6 m/s. What is its speed in km/h?<br> (1 km=1000 m)<br> (1 h = 3600 s)

Tems11 [23]

answer:

m/s --- km/h = $\frac{1000}{3600}$