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crimeas [40]
3 years ago
11

Heather paid $1,493.30 for a computer. If the price paid includes a 9% sales tax, which of the following equations can be used t

o determine the price of the computer after tax?
(Let x represent the cost of the computer and y represent the total cost after tax.)
A. y = 1.09x
B. y = 0.91x
C. y = 1.9x
D. y = x + 9x
Mathematics
1 answer:
aliina [53]3 years ago
3 0
A because x is the original price, so you multiply by the tax (9%) which would convert to 1.09 which you would multiply to the x

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43 tens × 3 tens = how many hundreds
ladessa [460]
43 tens = 43 * 10 = 430
3 tens = 3 * 10 = 30

430 x 30 = 12900 tens
12900/100 = 129 hundreds <===
4 0
3 years ago
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best answer will be awarded the brainliest and 5 stars please evaluate 6/2 and remember to show your work
Svet_ta [14]
6/2 is the number 6 being divided in half by 2; to figure this out just count your 2 table factors! Shown work:

2 x 2 = 4
2 x 3 = 6!

So 6 divided by 2 (6/2) is just the oppoposite of 2 x 3 = 6
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3 years ago
Arthur drops a ball from a height of 81 feet above the ground. Its height, h, is given by the equation h = –16t2 + 81, where t i
Lorico [155]

Answer:

Step-by-step explanation:

We are given the position function and need to find the value of t when h<17.

Create an inequality that represents this situation:

-16t^2+81 The "less than" sign makes this very specifically a conjunction problem as opposed to a disjunction. That's important to the solution. But we'll get there.

The simplest way to solve this is to subtract 81 from both sides:

-16t^2 then divide both sides by -16:

t^2>4 Notice now that the sign is facing the other way since we had to divide by a negative number. Now it's a disjunction. The solution set to this inequality is that t>2 or t<-2. First and foremost, time will never be negative, so we can disregard the -2. Even if that was t<2, the more time that goes by, the greater the time interval is, not the lesser. It's the "<" that doesn't make sense, not only the -2. The solution to this inequality is

t > 2 sec. That means that after 2 seconds, the height of the ball is less than 17 feet.

6 0
3 years ago
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PLEAS HELP FAST !!<br><br> solve the equation below. please include the steps. <br><br> x^2+8x+15=0
Nataliya [291]
(x + 5)(x + 3)
x+5=0, solve it and you get -5.
x+3=0, solve it and you get -3.

The answers are -5 and -3.
4 0
3 years ago
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Describe two ways you can find the measure of &lt;7.
Verizon [17]

Answer:

angle 7= 66

Step-by-step explanation:

Angle 1 is equal to the 114 degrees. And angle 1 + angle 7 = 180. So it would be 114 + angle 7 = 180. So you do 180-114 = 66. So angle 7= 66.

The other way is that 114 + angle 6 = 180, so you do 180-114= 66.

And agle 6 is equal to angle 7, so that's another way you can know that angle 7= 66

5 0
3 years ago
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