MATHEMATICS COLLEGE

4.1 Number Talk: DivisionFind each quotient mentally.

645 divided by 100

645 divided by 50

48.6 divided by 30

48.6 divided by x
4.1 Number Talk: Division Find each quotient mentally. 645 divided - 1

Answers

Answer 1
Answer:

Answer:

645/100 = 129/20 or 6.45

645/50 = 129/10 or 12.9

48.6/30 = 1.62

48 divided by x = 48.6/x

Step-by-step explanation:

645/100

Factor the number:

= 5*129/100

Factor the number:

= 5*129/5*20

Cancel the common factor:

= 129/20

645/50

Factor the number:

5*129/50

Factor the number:

5*129 / 5*10

Cancel the common factor:

= 129/10

48.6/30

Write the problem in long division format

Multiply the quotient digit (1) by the divisor (30)

Subtract 30 from 48

Add a decimal and bring down the next number

Divide 186 by 30 to get 6

Continue...A few steps later...

Subtract 60 from 60

Solution is 1.62

48.6/x

Re-write division as a fraction:

48.6/x

Related Questions

I really really need help the problem is confusing to me image attached
Give step by step answer
Over the course of a multi-stage 4510-km bicycle race, the front wheel of an athlete's bicycle makes 1.70x106 revolutions. How many revolutions would the wheel have made during the race if its radius had been 1.3 cm larger
What is the solution to the equation 9x+27=9( x+2) +9
Determine whether the relation is a function. {(−3,−6),(−2,−4),(−1,−2),(0,0),(1,2),(2,4),(3,6)}

Determine whether the following sequence converges or diverges and describe whether it does do so monotonically or by oscillation. Give the limit when the sequence converges. {(-1.00000005)^n}

Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.

a. The sequence diverges by oscillation.
b. The sequence converges monotonically. It converges to:________
c. The sequence converges by oscillation. It converges to:________
d. The sequence diverges monotonic ally.

Answers

Answer:

a

Step-by-step explanation:

(-1.00000005)^n

as n becomes very large, the function increases in both positive and negative direction.

If n=1, -1.00000005

if n=2, 1.0000001

if n= 3, -1.00000015

if n=20, 1.000001

if n=21, -1.00000105

WILL GIVE BRAINLIEST!!! 50POINTS. PLEASE EXPLAIN!What is the recursive rule for this geometric sequence? 2, 1/2, 1/8, 1/32, ... Enter your answers in the boxes.
an=___⋅an−1, a1=___

Answers

\bf \stackrel{a_1}{2}~~,~~\stackrel{2\cdot (1)/(4)}{\cfrac{1}{2}}~~,~~\stackrel{(1)/(2)\cdot (1)/(4)}{\cfrac{1}{8}}~~,~~\stackrel{(1)/(8)\cdot (1)/(4)}{\cfrac{1}{32}}\n\n-------------------------------\n\na_n=\cfrac{1}{4}\cdot a_(n-1)\qquad \qquad a_1=2

Answer:

an= 1/4 · an-1                                 a1= 2

Step-by-step explanation:

Got it correct on the test.

How to compute the area of a circle

Answers

Answer:

A = \pi r^2

Step-by-step explanation:

Area of a circle =

\pi * r^2\n\n=\pi r^2

Area of a circle can also be calculated with ;

1. Using Radius to Find Area

2. Calculating Area from the Diameter

3. Using Circumference to Calculate Area

4. Finding Area from a Sector of the circle.

What is the difference of -2.2 and 0.44?

Answers

1.76 i think thats the answer
one is negative and the other is positive and one has a whole number, and the other only has a decimal

help!!!! It’s missing and I forgot to do but I need the answers 1-4 thank you so much your a life saver

Answers

1. No solution
2. y= -3x/4-5/2
3. x=8+y
4 I can’t really see it

3. Kirk bought a bag of candy and took 10pieces. He split the rest evenly among 12
friends. Each friend received 5 pieces. Letc
represent the number of pieces in a bag.
Equation:
Solve it to find how many pieces of candy were in the bag.
Type here
Show your work
Write and solve the equation

Answers

70, Multiply 5 pieces by 12 friends and you get 60, then add the 10 pieces he originally took out, and you get 70
Other Questions
A circle is divided into 6 equal parts. What is the angle measure of 1 part?
The Schuller family has five members. Dad is 6ft 2in tall. Mom is 3 inches shorter than Dad, but 2 inches taller than Ivan. Marcia is 5 inches shorter than Ivan, but twice as tall as Sally-Jo. What is the mean height of the Schuller family?
Jill brought a pound of strawberries for 4.00. What is the price per ounce of strawberries
A Pew Internet poll asked cell phone owners about how they used their cell phones. One question asked whether or not during the past 30 days they had used their phone while in a store to call a friend or family member for advice about a purchase they were considering. The poll surveyed 1003 adults living in the United States by telephone. Of these, 462 responded that they had used their cell phone while in a store within the last 30 days to call a friend or family member for advice about a purchase they were considering.A) Identify the sample size and the count. B) Calculate the sample proportion. C) Explain the relationship between the population proportion and the sample proportion.