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bearhunter [10]
3 years ago
8

A TV is on sale at 30% off for $420. What was the original price of the TV?

Mathematics
1 answer:
liberstina [14]3 years ago
4 0
<span>"A TV is on sale at 30% off for $420"
 
What was the original price of the TV?
</span>

Well if you start to calculate first off you are sooner or later going to figure out that in order for it to be 420 the answer has to be bigger than 1,000. If you get to 1,200 and calculate 30 percent off of it it the answer is 360 so a ballpark quesstiminate would be to go two more hundredths up. Therefore 30 percent of 1,400 is 420
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Answer:224

Step-by-step explanation:

6 0
2 years ago
Texas University Quarterback, Michael Daniels, is standing on his own 10-yard line. He throws a pass tword the opposite goal lin
dimulka [17.4K]

Answer: The function is y=-\frac{28}{625}(x-35)^2+30.

Explanation:

It is given that Michael Daniels, is standing on his own 10-yard line. He throws a pass toward the opposite goal line. The football is 2 yards above the ground when the quarterback lets it go.

It follows a parabolic path. Reaching its highest point, 30 yards above the ground. It is caught 50 yards downfield at a point 2 yards above the ground.

So, the initial point is (10,2) and the other point is (60,2).

The height function of a football represents a downward parabola. The maximum point of the function is called vertex. So the vertex is (h,30).

The two point (10,2) and (60,2) have same y-coordinate, therefore the function is maximum at the midpoint of both points.

midpoint=(\frac{10+60}{2}, \frac{2+2}{2})=(35,2)

So, the function is maximum at x=35. Hence the vertex is (35,30)

The standard form of the parabola is,

y=a(x-h)^2+k

Where (h,k) is vertex and a is scale factor.

Since vertex is (35,30).

y=a(x-35)^2+30

The initial point is (10,2).

2=a(10-35)^2+30

-28=625a

a=-\frac{28}{625}

So the function of height is.

y=-\frac{28}{625}(x-35)^2+30

The graph of the function is shown below.

3 0
3 years ago
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finlep [7]

Answer:

Day 3 : 6 Day 2: 4 Day 1: 2 and so on

Step-by-step explanation:

This may not be correct but i think that you multiply the day number by two.

6 0
2 years ago
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Danielle wants to leave a 15% tip on her restaurant bill. The total she pays with the 15% is $94.30. What is her restaurant bill
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Answer:

$628.67

Step-by-step explanation:

15% of her restaurant bill is $94.30.

15 goes into 100, 6 2/3 times. so we multiply both 15% and $94.30 by 6 2/3 to get 100% and the restaurant bill.

15% x 6 2/3 = 100%

$94.30 x 6 2/3 =

628.666666

or

$628.67

I hope that this helps! :)

8 0
2 years ago
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