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vivado [14]
3 years ago
13

An item cost $380 before tax and the sales tax is $11.40 find the sales tax rate

Mathematics
2 answers:
PtichkaEL [24]3 years ago
7 0
(t x 380), 11.4 i beleive 
Artist 52 [7]3 years ago
3 0
Hello! To find the sales tax rate, all you have to do is divide the amount of tax by the amount before tax. 11.4/380 is 0.03. Because percents are parts of 100, multiply that decimal by 100 in order to get 3. There. The sales tax rate is 3%.
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Suppose we want to choose colors, without replacement, from the colors red, blue, green, and purple.
DerKrebs [107]

The number of ways when the choice is not relevant is 4

<h3>How to determine the number of ways?</h3>

The number of colors are:

Colors, n = 4

The color to choose are:

r = 3

<u>Relevant choice</u>

When the choice is relevant, we have:

Ways = ^nP_r

This gives

Ways = ^4P_3

Evaluate

Ways = 24

Hence, the number of ways when the choice is relevant is 24

<u>Not relevant choice</u>

When the choice is not relevant, we have:

Ways = ^nC_r

This gives

Ways = ^4C_3

Evaluate

Ways = 4

Hence, the number of ways when the choice is not relevant is 4

Read more about combination at:

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4 0
2 years ago
Please help with calculations!
ASHA 777 [7]

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3 years ago
Oscar needs to purchase soft drinks for a staff party. He is
PilotLPTM [1.2K]

Answer:

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Step-by-step explanation:

4 0
2 years ago
Solve √(3x+7)+2√(x-8)=0.
laiz [17]

Answer:

The solution to this question is 39

Step-by-step explanation:

Given that :

√(3x+7)+2√(x-8)=0.    

√(3x+7)=-2√(x-8)           (i)

square of the equation (i)

Then

(√(3x+7))^2=(-2√(x-8))^2

we know that √a*√a=(√a)^2=a So,

(3x+7)=4(x-8)      

3x+7=4x-32        //multiply by 4

32+7=4x-3x  exchange the value.

39=1x

x=39.

4 0
3 years ago
Need help before 5:30pm i also have to show my work.
SpyIntel [72]

I can help!! But could you tell me what the equations are?

6 0
3 years ago
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