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Sergio039 [100]
3 years ago
10

Is -7+9=-9+7 true,false,or open?

Mathematics
2 answers:
stellarik [79]3 years ago
5 0
This statement will be false. 

-7+9=2
-9+7=-2

2  \neq  -2, therefore, this statement is false.
Basile [38]3 years ago
3 0
The answer you are looking for is false because on of the answer will be negative and the other will be positive hope that helps *smiles* 
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Q. Mrs. Jackson purchased 8/9 lb of potatoes. She used 3/4 of the potatoes to prepare dinner. How much of the potatoes did Mrs.
kompoz [17]

Answer:

The answer is 5/36

Step-by-step explanation:

first, you are going to convert both of the fractions to have the same dinominator by multiplying by any of their factors.

32/36 - 27/36 = 536

Then you subtract the numerators and that's it

hope I helped :)


7 0
3 years ago
Please answer quick!
tatuchka [14]
4 * (25 * 1.2) = (4 * 25) * 1.2
3 0
3 years ago
Read 2 more answers
Sammy wants to deposit into a 7% annual simple interest account she will also deposit twice as much in a certificate of deposit
antiseptic1488 [7]

Answer: $2294 should be invested in the simple interest account while $4588 should be invested in the certificate of deposit.

Step-by-step explanation:

Let x represent the amount that he would deposit in the simple interest account.

Let y represent the amount that he would deposit in the certificate of deposit.

she will deposit twice as much in the certificate of deposit. It means that

y = 2x

Interest from the simple interest account would be 7%. This mean that the interest would be 7/100 × x = $0.07x

Interest from the certificate of deposit account would be 5%. This mean that the interest would be 5/100 × y = $0.05y.

The total interest from both accounts would be $390. It means that

0.07x + 0.05y = 390- - - - - - - - - - 1

Substituting y = 2x into equation 1, it becomes

0.07x + 0.05 × 2x = 390

0.07x + 0.1x = 390

0.17x = 390

x = 390/0.17 = $2294

y = 2x = 2 × 2294

y = 4588

4 0
3 years ago
WILL GIVE BRAINLIEST, THANKS AND FIVE STARS FOR CORRECT ANSWER
Kitty [74]
It’s twelve because you multiple x by 12 and get y.
4 0
3 years ago
Can u help with this one u know who u are
tatiyna
It's the one on the top righr, -2/9 w + 2/15.
8 0
3 years ago
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