3 years ago

Two different ways to find the difference for 12-3

2 answers:

8 0

For this case we have:

way 1:
Common factor 3 in the expression:
$12-3 = 3 (4-1)

12-3 = 3 (3)

12-3 = 3 (9)$

Way 2:
Write the number 12 as the sum of 4 times 3:
$12-3 = (3 + 3 + 3 + 3) - 3
$
Then, for associative property:
$12-3 = 3 + 3 + 3 + (3 - 3)

12-3 = 3 + 3 + 3 + (0)

12-3 = 3 + 3 + 3

12-3 = 9$

Scrat [10]3 years ago

7 0

12-3=9
9+3=12
12-9=3

I hope this helped!

You might be interested in

In two months Mika spent a total of $305.43 on groceries. She spent $213.20 in the first month.How much did she spit in a second

Nostrana [21]

To find out how much she spent during the second month, all we have to do is subtract $305.43 and $213.20

$305.43 - $213.20 = $92.23

Therefore she spent $92.23 during the second month

Hope this helps

4 0

2 years ago

Read 2 more answers

A portion of a hiking trail slopes upward at about a 6 angle. To the nearest tenth of a foot, what is the value of x, the distan

kirza4 [7]

The distance covered by the hiker if he traveled a horizontal distance of 120 ft at and angle of 6° will be given by:
cos θ=adjacent/hypotenuse
let the hypotenuse be h, adjacent =120 ft, θ=6°, thus plugging in the values we shall have:
cos 6=120/h
h=120/cos 6
h=120.661 ft
Answer: 120.661 ft

5 0

3 years ago

How much does 4 7/5 kg of candy cost if 5/6 kg costs 7.50

inn [45]

Answer:

$48.60

Step-by-step explanation:

4 7/5 is a funny way to express a fraction... but anway..... if this is correct, then the answer is as follows:

5/6 kg ------> cost $7.50

1 kg ----> costs $7.50 ÷ 5/6 kg = $9

4 7/5 kg ------> costs $9 x (4 7/5) = $9 x (27/5) = $48.60

3 0