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weqwewe [10]
3 years ago
9

Which strategy would you use to find 2+8 ? explain how you decided.

Mathematics
2 answers:
Solnce55 [7]3 years ago
4 0
 Use Computation Strategies for Basic Number Facts. You would use Addition Strategies to find 2 +8.
guajiro [1.7K]3 years ago
4 0
How i would explain how to do 2+8 would to do the equation first by doing 8+2=10 then cheak it by doing 10-8=2 OR 10-2=8
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Find the solution to the equation -2(x + 5) = -16. x =
Radda [10]

Answer:

x = 5/7 = 0.714

Step-by-step explanation:

8 0
2 years ago
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a certain number of two digit is three times the sum of its digit and if 45 added to it the digit will be reversed find the numb
bogdanovich [222]
· Author has 184 answers and 67.6K answer views
Let the number be (10 x + y)

Then, 10 x + y = 3 * (x + y) (given)

Or, 10 x + y = 3 x + 3 y

Or, 10 x - 3 x = 3 y - y

Or, 7x = 2 y

Or, x = 2 y / 7 ( Eq. 1)

Also, 10 x + y + 45 = 10 y + x ( given)

Or, 10 x - x = 10 y - y - 45

Or, 9 x = 9 y - 45 ( Eq. 2)

Substituting the value of x from (Eq. 1) in (Eq. 2), we have:

9 * 2 y / 7 = 9 y - 45

Or, (9 y ) - (18 y / 7) = 45

Or, 63 y - 18 y = 315

Or, 45 y = 315

Or, y = 7

From (Eq. 1),

x = 2 * 7 / 7 = 2

So, the number is 10 x + y = (10 * 2) + 7 = (20 + 7) = 27

Answer

Check:

Sum of the digits = 2 + 7 = 9

9 * 3 = 27 ✓

Adding 45 to the number 27, we get 72. So, the digits get reversed.
5 0
3 years ago
Which statement best describes why the sale price is a function of the original price?
stich3 [128]

Answer:

  see below

Step-by-step explanation:

A relation is a <em>function</em> when there is exactly one output for each input. That is the case in this table, so the relation between the original price and sale price is a function.

5 0
3 years ago
In a lottery game, a player picks six numbers from 1 to 22. If the player matches all six numbers, they win 20,000 dollars. Othe
Angelina_Jolie [31]

Answer:

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Out of which there is only one winning combination.

Therefore we conclude:

P(win 20000)=1/134596

P(lose 1)=134595/134596

and hence the expected value is:

20000*(1/134596)+(-1)*(134595/134596)

=-114595/134596

=-0.8514 (rounded to four places after decimal)

Step-by-step explanation:

Hope this helped!

8 0
3 years ago
1 - 2/4=?????<br>I forgot how too do these T-T​
Tema [17]

Answer:

1/2

Step-by-step explanation:

you can simply the fraction making it 1/2 and 1 - 1/2 = 1/2

3 0
2 years ago
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