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e-lub [12.9K]
3 years ago
14

3. The grade a student earns on a test varies directly with the amount of time the student spends studying. Suppose a student sp

ends 6.5 hours studying and makes a grade of 84% on the test. What is an equation that relates the grade earned on a test, g, with the amount of time spent studying, t, in hours? What is the garish of your equation.

Mathematics
1 answer:
In-s [12.5K]3 years ago
4 0
For this case we observe that the time varies linearly with the obtained qualification.
 The equation of the line can be obtained as follows
 g-go = m (t-to)
 where (go, to) are points that belong to the line.
 To form the equation you need two points. These points are
 (g1, t1) = (0,0)
 (g2, t2) = (6.5.84)
 Then, substituting, the equation of the line is
 m = (84-0) / (6.5-0) = 84 / 6.5 = 12.923
 g-0 = (12,923) * (t-0)
 Rewriting.
 g = 12.923t
 The slope of the line is
 m = 12,923
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While looking at some reports, a store manager notes that televisions that retail for $475 and up costing customers $513 once th
Mekhanik [1.2K]

The sales tax percentage of the store manager report is 7.41%

<h3>How to solve for the sales tax percentage</h3>

Customers are subject to a charge known as sales tax when they buy goods and services.

It is a pass-through tax, which means you must collect it from clients and send the money to your state or local government. the seller do not contribute sales tax.

The sales tax is first calculated by

= price after tax - price before tax

= 513 - 475

= 38

sales tax percentage is calculated using the formula

= (Tax amount / Price before tax) × 100%

= (38 / 513) * 100

= 7.4074

= 7.41%

Learn more about sales tax at:

brainly.com/question/20220356

#SPJ1

3 0
1 year ago
Jillian is using integer tiles to add 7 + (negative 2). She uses the steps below.Step 17 positive tiles.Step 27 positive tiles a
NemiM [27]

Answer:

d

Step-by-step explanation:

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3 0
2 years ago
A driver travels 288 miles in 6 hours. What is the driver’s speed, in miles per hour? Is it 48? I got 48
Dafna11 [192]

Answer:

48

Step-by-step explanation:

288 divided by 6 is 48 and how you get mph is todal miles in 1 hr

7 0
3 years ago
A long time ago Dulani found an island shaped like a triangle with three straight shores of length 3 km 4 km and 5 km.He said no
VikaD [51]
To find the area of his exclusion zone you would need to understand that a triangle with dimensions of 3, 4, and 5 represent a right triangle.

This means the exclusion zone would be applied to the base and the height of the triangular space.

You would add 2 km to the 3 km, and 2 km to the 4 km to create a new height of 5 km and a new base of 6 km.

Please see the attached picture to understand this.

You will find the area of the total space created by the new triangle and subtract the space represented by the original triangle to find the area of the exclusion zone.

(1/2 x 6 x 5) - (1/2 x 4 x 3)
15 km² -6 km² equals 9 km².

The exclusion space is 9 km².

5 0
3 years ago
PLEASE HELP! I NEED TO GET THIS DONE SOON!
tensa zangetsu [6.8K]

Answer:6

Step-by-step explanation:

In a circle, a radius perpendicular to a chord bisects the chord. So BC = CA BC = 6 (given) x (or AC) = 6 Answer = 6. Tell me if I was right. Thanks.

6 0
3 years ago
Read 2 more answers
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