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2 years ago

Now can you help meeeeeeeee

Mathematics

2 answers:

Furkat [3]2 years ago

6 0

8 x4 = 32 and 9x3 =27

ELEN [110]2 years ago

5 0

Answer: 1-27 2-8 3-9 4-32

Step-by-step explanation:

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Tennis distribution buys rackets at a wholesale price of 25$ per racket and sells them for 75.00$ each. What is the percent incr

Marrrta [24]

Answer:

200%

Step-by-step explanation:

25 would be 100 it marks them up 50 = 200 %

8 0

3 years ago

The sum of the circumference of a circle and the perimeter of a square is 24. Find the dimensions of the circle and square that

lyudmila [28]

Answer:

The radius of the circle is $r=1.68\ units$

The length of the square is $x=3.36\ units$

Step-by-step explanation:

we know that

The circumference of a circle is equal to $C=2\pi r$

The perimeter of the square is equal to $P=4x$

$24=2\pi r+4x$

Simplify

$12=\pi r+2x$

$x=(12-\pi r)/2$ -----> equation A

The area of a circle is equal to $A=\pi r^{2}$

The area of a square is $A=x^{2}$

The total area is equal to

$At=\pi r^{2}+x^{2}$ -----> equation B

substitute equation A in equation B

$At=\pi r^{2}+[(12-\pi r)/2]^{2}$

This is a vertical parabola open upward

The vertex is the minimum

The x-coordinate of the vertex is the radius of the circle that produce a minimum area

The y-coordinate of the vertex is the minimum area

Solve by graphing

The vertex is the point (1.68, 20.164)

see the attached figure

therefore

The radius of the circle is

$r=1.68\ units$

Find the value of x

$x=(12-\pi r)/2$

assume

$\pi =3.14$

$x=(12-(3.14)*(1.68))/2$

$x=3.36\ units$

8 0

2 years ago

PLEASE GUYS I NEED HELP!! IS THERE ANYONE WHO KNOW THIS TWO QUESTIONS :')))

Arturiano [62]

Answer:

figure it out your self stop having other people do your work for you

Step-by-step explanation:

3 0

1 year ago

40 pages read in 20 minutes. what is the unit rate?

Alenkinab [10]

Answer:

2 pages per minute.

Step-by-step explanation:

40 pages / 20 minutes

= 40 / 20 = 4 / 2 = 2

Therefore, you read 2 pages per minute.

8 0

2 years ago

The LCM of two numbers is 60.the sum of the numbers is 32

mihalych1998 [28]

Write down some possibilities of the 2 numbers that add up to 32 first.
16+16, 15+17, 14+18, 13+19, 12+20

12 and 20 works because 12*5=60 and 20*3=60

Your answer is 12 and 20 (:

8 0

2 years ago

Read 2 more answers