All categories

3 years ago

What is three and three sevenths plus two and a half?

Mathematics

2 answers:

spin [16.1K]3 years ago

7 0

Answer: 5.928 and so on

Step-by-step explanation:

katrin2010 [14]3 years ago

7 0

Answer:

$5 \frac{13}{14}$

Step-by-step explanation:

$3 \frac{3}{7} + 2 \frac{1}{2}$

find LCM/ least common multiple

7:7 14 21 28 35...

2:2 4 6 8 10 12 14 16 18...

$3 \frac{3}{7} = 3 \frac{6}{14}$

$2 \frac{1}{2} = 2 \frac{7}{14}$

$3 \frac{6}{14} + 2 \frac{7}{14} =$

$5 \frac{13}{14}$

You might be interested in

System of equations

nalin [4]

Answer:

The solution of the system of equations is the point (-3,0)

Step-by-step explanation:

we have

$-3x+y=9$ -----> equation A

$2x-y=-6$ -----> equation B

Adds equation A and equation B

$-3x+y=9\\2x-y=-6\\------\\-3x+2x=9-6\\-x=3\\x=-3$

Find the value of y

$-3(-3)+y=9$

$9+y=9$

$y=9-9=0$

The solution of the system of equations is the point (-3,0)

4 0

3 years ago

Consider the following figure:

kiruha [24]

The solid 3D object that is produced by rotating the triangle about line m is a cone.

<h3>What is a triangle?</h3>

It should be noted that a triangle simply means a shape that has three sides and three angles.

In this case, the solid 3D object that is produced by rotating the triangle about line m is a cone.

Learn more about triangle on:

brainly.com/question/1058720

#SPJ1

8 0

2 years ago

ILL GIVE BRAINLIEST. plsss help asap

balu736 [363]

Step-by-step explanation: It should be the second answer.

8 0

3 years ago

WILL MARK BRAINLIEST!! please answer all questions

lana66690 [7]

Answer:

1a) −24x^4−52x^3+198x^2+126x−325

2a) 14x^2+7x−41

3a) 30x^3+9x^2+32x−7

Step-by-step explanation:

7 0

3 years ago

A three inch diameter pulley on an electric motor that runs at 1800

Bezzdna [24]

Answer:

a) 3 inch pulley: 11,309.7 radians/min

6) 6 inch pulley: 5654.7 radians/min

b) 900 RPM (revolutions per minute)

Step-by-step explanation:

Hi!

When a pulley wirh radius R rotantes an angle θ, the arc length travelled by a point on its rim is Rθ. Then the tangential speed V is related to angular speed ω as:

$V=R\omega$

When you connect two pulleys with a belt, if the belt doesn't slip, each point of the belt has the same speed as each point in the rim of both pulleys: Then, both pulleys have the same tangential speed:

$\omega_1 R_1 = \omega_2 R_2\\$

$\omega_2 = \omega_1 \frac{R_1}{R_2} =1800RPM* \frac{3}{6}= 900RPM$

We need to convert RPM to radias per minute. One revolution is 2π radians, then:

$\omega_1 = 1800*2\pi \frac{radians}{min} = 11,309.7\frac{radians}{min}$

$\omega_2 = 5654.7 \frac{radians}{min}$

The saw rotates with the same angular speed as the 6 inch pulley: 900RPM

3 0

3 years ago