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Strike441 [17]
3 years ago
10

What 2 numbers multiplied gives -294 and added gives 7?

Mathematics
2 answers:
Molodets [167]3 years ago
8 0
<span>21 and -14 = -294 when multiplied and 7 when added</span>
aivan3 [116]3 years ago
4 0
21 and -14 ..............
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The sum of all three numbers is 12. The sum of twice the first number, 4 times the second number, and 5 times the third number i
DaniilM [7]

Answer:

The numbers are 7, 4 and 1

Step-by-step explanation:

Let the numbers =x, y, z.

The sum of all three numbers is 12, x+y+z=12--------i

The sum of twice the first number, 4 times the second number, and 5 times the third number is 35, 2x+4y+5z=35-------ii

The difference between 8 times the first number and the second number is 52, 8x-y=52---------iii

Now, from (i),z =1-x-y--------iv

substitute (iv) in (ii),

2x+4y+5(12-x-y)=35

2x+4y+60-5x-5y=35

collect like terms

-3x-y=-25

that is, 3x-y=25--------v

solving (iii) and (v) simultaneously (add iii and v), we have

11x=77

divide both sides by 11 to obtain x=7

Put x=7 in (v)

3(7)+y=25

21+y=25

implies y=25-21=4

put x=7 and y=4 in (iv)

z=12-7-4=1

Hence, the numbers are 7, 4 and 1.

4 0
3 years ago
Sonora currently has an account balance of $1,822.07. Her initial deposit on the account was $781 and it earned 4.3% simple inte
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Step-By-Step Explanation:

3 0
3 years ago
How could you use the property to compute 2x8x2 mentally
Sveta_85 [38]
First you need to kbkw you 2x tables then you multiply 2x8=16x2=32 the best way to do it is to break ot down in your head say that you know that 2x2=4 then you do 4x8=32
8 0
3 years ago
Read 2 more answers
How much is 109 divided by 5?
butalik [34]
There's more than one way to do this problem.

Try this:  Mult. both 109 and 5 by 2, obtaining 218 and 10.

What is 218 div. by 10?  Do this in your head.
6 0
3 years ago
Solve the equation?<br><br> 13 +w/7 = –18 ...?
Degger [83]
The equation given in the question is

13 + (w/7) = - 18
(91 + w) / 7 = - 18
91 + w = - 126
w = - 126 - 91
    = - 217

I hope that the procedure is clear enough for you to understand. I also hope that this is the answer that you were looking for and the answer has actually come to your desired help.
3 0
3 years ago
Read 2 more answers
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