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4 years ago

How can fact families and multiplication facts help you divide

1 answer:

6 0

The fact families you will need to know so you can figure out the answer or answers your multiplication facts will help you because division is backwards multiplication and if you know that 5 x 4 = 20 than you know that 20 divided by 4 = 5

Hoped this helped ;)

You might be interested in

Consider circle H below.

hram777 [196]

We have been given a circle H, in which length of arc XY is 78 miles and measure of arc XY is 70 degrees. We are asked to find the radius of circle.

We will use arc length formula to solve our given problem.

$\text{Arc length}=2\pi r\cdot \frac{\theta}{360^{\circ}}$ , where,

r = Radius of circle,

$\theta$ = Central angle corresponding to arc.

We know that the measure of central angle that corresponds to arc XY will be equal to measure of arc XY.

$78=2\cdot 3.14\cdot r\cdot \frac{70^{\circ}}{360^{\circ}}$

$78=2\cdot 3.14\cdot r\cdot \frac{7}{36}$

$78= 3.14\cdot r\cdot \frac{7}{18}$

$78= r\cdot \frac{21.98}{18}$

$r\cdot \frac{21.98}{18}=78$

$r\cdot \frac{21.98}{18}\cdot \frac{18}{21.98}=78\cdot \frac{18}{21.98}$

$r=63.8762511373$

Upon rounding to nearest hundredth, we will get:

$r\approx 63.88$

Therefore, the radius of circle H is approximately 63.88 miles.

7 0

3 years ago

Help and explain very easy hurry 10 points

stealth61 [152]

Answer:

$\$18.97$ per hour

Step-by-step explanation:

step 1

Find the total hours

(37 hours/week)*(52 week)=1,924 hours

step 2

Divide the annual salary by the total hours

$\frac{36,500}{1,924}= 18.97\frac{\$}{h}$

7 0

4 years ago

You roll a standard number cube. find P(3or4) A) 1/6 B) 1/3 C) 5/6 D) 1/2

Art [367]

That's a 2/6 probability, so 1/3 -- B.

6 0

3 years ago

PLS HELP

konstantin123 [22]

14 pizzas.

First, add up the numbers of players on each team and the coachesto get the total number of people eating.
17 + 21 + 20 + 17 + 9 = 84

Then, you can divide 84 by 6 to see how many pizzas: 84/6 = 14

If you’re teacher wants you to set it up as a ratio, it’s 6/1 = 84/x

Then you cross-multiply:
6x = 84
Divide both sides by 6
x = 14

4 0

3 years ago

ASAP HELpppppppppppppppppppppppppppppppppppppppppppppp

faust18 [17]

Answer:

This is essentially the third identical question that you posted with the same

type of solution ... if you look at the previous question you asked and the explanation.. you will see that the red line crosses a corner of a box at (4,20)

4 cups = 20 pralines thus the number you are looking for is 20/4 = 5

Step-by-step explanation:

lets try this "story" to explain...

assume that you can walk 3 miles in 1 hour

this means that at 0 hr you go 0 miles , 1 hr you go 3 miles etc

0,0

1,3

2,6

3,9

etc.

if you graph that you will have the red line in you graph, and the x values would be 0,1,2,3 with the y values being 0,3,6,9....

if you DIVIDE any of those points

3/1 ,6/2, 9,3 the result is always a "3" that is the speed that you are walking at

it is a CONSTANT (in this problem) ... note: if the speed is NOT constant then this basically becomes a calculus problem, ant an algebra one.

8 0

3 years ago