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Zigmanuir [339]

2 years ago

7

An item costs $4.00 before tax and 4.32 after sales tax.what is the sales tax rate

1 answer:

dybincka [34]2 years ago

4 0

Answer:

8%

Step-by-step explanation:

You multiply 4 times .08 which =32, so 8% of 4.00 =32 cents.

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Which of the following (x,y) pairs is the solution for the system of equations x+2y=4 and -2x+y=7

kakasveta [241]

Answer:

(-2 ,3)

Step-by-step explanation:

Step 1: Rewrite first equation

x = 4 - 2y

-2x + y = 7

Step 2: Substitution

-2(4 - 2y) + y = 7

Step 3: Solve <em>y</em>

-8 + 4y + y = 7

-8 + 5y = 7

5y = 15

y = 3

Step 3: Plug in <em>y</em> to find <em>x</em>

x + 2(3) = 4

x + 6 = 4

x = -2

3 0

2 years ago

What is 6% of $300?

guajiro [1.7K]

$18

Have a good day

3 0

2 years ago

Read 2 more answers

Find the solution of the given initial value problem. ty' + 6y = t2 − t + 1, y(1) = 1 6 , t > 0

gtnhenbr [62]

Answer:

Step-by-step explanation:

Given is a differential equation as

$ty' + 6y = t^2 - t + 1, y(1) = 1 6 , t > 0$

Divide this by t to get in linear form

$y'+6y/t = t-1+1/t$

This is of the form

y' +p(t) y = Q(t)

where p(t) = 1/t $e^(\int 1/tdt) = t$

So solution would be

$yt = \int t^2-t+1 dt\\= t^3/3-t^2/2+t+C$

siubstitute y(1) = 16

$16 = 16^3/3-128+1+C\\C = -1206$

4 0

2 years ago

Tennis balls cost 7$ for a can of 3. Steve gives the cashier $40 to buy balls and receives $12 in change. How many tennis balls

Keith_Richards [23]

4 cans. 12 tennis balls.

6 0

2 years ago

PLSSSS HELPP ASSPPPP!!!!

Ne4ueva [31]

The rate of change is 1.5

8 0

2 years ago