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Olegator [25]
3 years ago
9

Jon bought a printer for $189 and a set of printer cartridges for $192. Sales tax on these items was 6.5%. What is Jon's total b

ill for these items?
Mathematics
1 answer:
julia-pushkina [17]3 years ago
4 0
So first we need to find the total before tax. Let's add up the two prices:

189+192=381

So we know that the total before tax is $381. Now we are told that the sales tax on these items is 6.5%. It would be easier for us to convert 6.5% to a decimal in order to multiply. Let's convert 6.5% to a decimal by dividing by 100:

\frac{6.5}{100}=0.065

Now that we have the sales tax in decimal form, let's multiply this sales tax by the total amount of the items before tax ($381):

381*0.065=24.77

This means that $24.77 is the tax for this purchase. To find the total amount that Jon paid for these items after tax, you must add the tax to the total amount before tax to give you:

381+24.77=405.77

So now we know that Jon's total bill for these items is $405.77.
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14 < n - 3

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14 + 3 < n + (-3 + 3)

17 < n + 0

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What is the probability of getting heads when flipping a coin and getting a number greater than or equal to 4 when rolling a sin
irakobra [83]
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In summary so far: there are 3 ways to get what we want out of 12 total

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Answer: Choice D) 1/4
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3 years ago
What value of θ makes cosθ = sin70° a true statement?<br> A) 20° <br> B) 40° <br> C) 70° <br> D) 90°
Delvig [45]

Answer:

A) 20°

Step-by-step explanation:

Sine and cosine are co-function complements which means that value of sine of an angle is equal to the value of cosine of the complementary angles.

This can be represented by:

\sin\theta=\cos(90\°-\theta)

\cos\theta=\sin(90\°-\theta)

Given statement:

cos\theta=\sin70\°

Applying co-function complements

\cos\theta=\sin(90\°-\theta)

Since, we can represent 70° = 90°-20°

So

\cos20\°=\sin(90\°-20\°)  

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ValentinkaMS [17]

Answer:

3.357

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