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Anika [276]
3 years ago
6

You are adding two rational numbers with different signs.how can you tell if the sum will be postitive a negative or zero?

Mathematics
1 answer:
Leya [2.2K]3 years ago
4 0
This is the rhyme that I use:

Same signs add and keep. Different signs subtract. Take the sign or the larger number and you will be exact.

If you have any questions than just ask me.
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Evaluate m+n for m = 9 and n=7​
____ [38]

Answer:

16

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
3. Show that the expression 3b - 4 + 6(b-9) is equivalent to the expression 9 (b-6) -4. Show your work. ANSWER ASAP PLZZ
sattari [20]

EDITED:

so lets make the question more clear

lets make it like this, if were gonna make 10 = b vv (sorry I meant to say 10, but I said 6 ;-;

3(10) - 4 + 6(10-9) = 30 - 4 + 6 = 26 + 6 = 32

= THIS EQUALS 32

Now lets do 9(b-6) - 4 which will be turned into 9(10-6) - 4 = 36 - 4                          = THIS EQUALS 32

MY ANSWER IS YES (DONT ASK ME WHY IM WRITING IN CAPS (((: )

7 0
4 years ago
Change decimal into fractions
Sergio [31]

Answer: I believe is 65/99

Step-by-step explanation: my teacher once told me when it has that infinite thing you place 99 under as a fraction [ however I'm not sure but I think thats right]

8 0
3 years ago
If represented in a stem-and-leaf plot, what would be the leaf of the number 392?
Dmitry [639]
The leaf of the number 392 would be. 2 cause there can be a lot of numbers that begin 39. Example:-

Plot 389, 392, 395, 351, 408 on a stem-and-leaf plot:-

Stem| Leaf
 35   |1
 38   |9
 39   | 2 5 
 40   | 8

Hope I helped ya!
       
6 0
3 years ago
Find the value of |-8| + 4(-5 + 9) ÷ 2.<br><br> 16<br> 12<br> 24<br> 0
jeka57 [31]

Answer:

16

Step-by-step explanation:

using the abs value rewrite equation to:  8 + 4(-5 + 9) ÷ 2

8+4(4)/2

8+16/2

8+8=16

hope this helps

6 0
3 years ago
Read 2 more answers
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