3 years ago

An item was purchased for m dollars. Sales tax is 8%. Write an expression that represents

Mathematics

1 answer:

Luba_88 [7]3 years ago

7 0

Answer:

m/100 x 8

Step-by-step explanation:

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Sualuate the following crbustions<br> 2x-3y+1 when x = 1, y = -1

Charra [1.4K]

Answer:

Step-by-step explanation:

First you want to rewrite the equation

2*1-3*(-1)+1

Then you want to do order of operations until you get your answer!

I hope this helps!

8 0

4 years ago

For each graph, calculate the slope of the line.<br> Whew is the slope between 2,6 and 8,4

Tom [10]

Answer:

-1/3

Step-by-step explanation:

First, slope is change in y over change in x, or rise over run. Plugging these points in, (y2-y1)/(x2-x1)=(6-4)/(2-8), or 2/-6, simplifying, the slope= -1/3.

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3 years ago

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Solve for n, 4 x n = 7 x 16

Sever21 [200]

Answer:

n=28 7 times 16=112divided by 4 =28

Step-by-step explanation:

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3 years ago

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A wise woman once said, "400 reduced by twice my age is 262." What is her age?

vekshin1

Answer:

331..?

Step-by-step explanation:

262 = 2a-400

662 = 2a

331

3 0

4 years ago

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which is the equation for the linear function f in the form f(x) = mx + b that has the given values? f(-2) = - 8, f(3) = 7

Xelga [282]

The information we have is:

$\begin{gathered} f(-2)=-8 \\ f(3)=7 \end{gathered}$

So we can find that two coordinates are ( -2,-8 ) and ( 3,7 ) so we can use the equation to find the slope so:

$\begin{gathered} m=\frac{y_2-y_1}{x_2-x_1} \\ m=\frac{7-(-8)}{3-(-2)} \\ m=\frac{15}{5} \\ m=3 \end{gathered}$

So the equation now will be:

$y=3x+b$

So we can replace one coordinate to find b so:

$\begin{gathered} 7=3(3)+b \\ 7=9+b \\ 7-9=b \\ -2=b \end{gathered}$

So the final equation is:

$y=3x-2$

5 0

2 years ago