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bogdanovich [222]
3 years ago
11

Evaluate 1 + (-2/3) - (-m) where m = 9.2.

Mathematics
2 answers:
vlabodo [156]3 years ago
5 0

Answer:

My answer is 9 8/15

Step-by-step explanation:

1 + ( -2/3) + 9.2

= 1 - 2/3 +9 1/5

1/3 + 9  1/5

9 8/15

-Dominant- [34]3 years ago
3 0

Answer:

9.533333

Step-by-step explanation:

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The difference of two numbers is 44 1 /2 . If the smaller of the two numbers increases 7 times then the difference will be 10 3/
pshichka [43]
Let’s call the numbers x and y. Let’s also say that x is the smaller of the two. Since their difference (the answer you get when you subtract is 44 and a half) we know that y-x=44.5

Next we are told that if the smaller increases 7 times (that means 7x) their difference would be 10 3/14. Let’s write that as a fraction. It is 14x10+3 over 14. That is 143/14.

So this means y-7x=143/14.

We have two equations and two unknowns (a system of equations). We write one over the other and subtract them to get:

y-x=44.5
y-7x=143/14

Subtracting yields:
(y-y)+(-x - - 7x) = 44.5 - 143/14
6x = (89/2) - (143/14)
6x= 623/14 - 143/14
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Since y-x=89/2
We get y - 40/7 = 89/2
Y = 40/7 + 89/2
Y = 80/14 + 623/14
Y = 703/14 = 50 3/14
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