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Zina [86]
3 years ago
11

HELP ASAP!!!

Mathematics
2 answers:
Viefleur [7K]3 years ago
8 0
The correct answer is A) 20%. Hope this helps.
Dmitry_Shevchenko [17]3 years ago
5 0
($21.56)/ ($26.95)* 100%= 80%

That means the price of the book after discount is 80% of its original price.

Percent discount was:
100%- 80%= 20%

The final answer is A. 20%.
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How long does it take for a simple with total number n to decay to 1/3n?
Vlada [557]
<span>Income earned over one year is principal * int rate so we have 0.12*A + 0.13*B +0.14*C = 400 and A + B + C = 3000 and A+B = C</span>
7 0
3 years ago
A circle that has a center at the point (3, -2) with a radius of 6. Write an equation for the circle.
crimeas [40]

Answer:

(x – 3)^2+ (y +2)^2 = 36

Step-by-step explanation:

Given data

The formula for the equation of a circle is (x – h)2+ (y – k)2 = r^2,

where (h, k) represents the coordinates of the center of the circle

h=3

k=-2

r= 6

Substitute

(x – 3)^2+ (y – (-2))^2 = 6^2

(x – 3)^2+ (y +2)^2 = 36

Hence the expression for the equation of the circle is

(x – 3)^2+ (y +2)^2 = 36

5 0
3 years ago
A car travels at a constant speed of 45 km per hour for 5 min each wheel has a radius of 25 centimeters calculate the number of
Arisa [49]

Answer:

477.47 revolutions

Step-by-step explanation:

From the information given:

The formula for calculating the circumference = 2π r

Given that the radius of each wheel = 25 centimeter

Then, the circumference = 2 π (25)

= 50π cm

The distance traveled in 5 minutes is as follows:

Given that:

The speed = 45 km/ hour

i.e.

1 hour = 45 km

In an hour, we have 60 minutes

So, 60 minutes = 45 km

1 minute = 45/60 = 0.75 km

To cm;

0.75 km = (0.75 × 1000) m = 750 m

750 m = 750 × 100 = 75,000 cm

∴

The number of revolution in 5 minutes sInce 1 revolution =  50π cm is:

=  75,000 cm/ 50π cm

= 477.47 revolutions in 5 minutes

6 0
2 years ago
50+30 x12 20 POINTS GUYS YESSSSSSSSSSSSSSSSSSSSSSS
daser333 [38]

Answer:

960

Step-by-step explanation:

50+30= 80

80x12=960

8 0
3 years ago
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icang [17]

Answer:

John has trouble making decisions.

Step-by-step explanation:

In the passage, it says the "I don't know what to do," John sighed and shrugged as he stared at the free ticket for tomorrow's show that he'd just been given. ,¨ indicates he´s having some trouble.

3 0
3 years ago
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