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Gre4nikov [31]
3 years ago
12

EDIE WANTED TO SUBTRACT 273-188. SHE BEGAN BY FINDING 2-1. WHAT DID EDIE DO WRONG.

Mathematics
1 answer:
elixir [45]3 years ago
7 0
He started at the wrong end of the number.

He should have started with the 3-8 and borrowed ending up with 85
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Step-by-step explanation:

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3 years ago
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Three more than the quotient of a number and 8 is 9
Alborosie

Answer:

48

Step-by-step explanation:

x/8+3=9

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the sum of the digits of a certain two-digits number is 7.Reversing its digits increases the number by 9.What is the number
rusak2 [61]
Unit digit=y
tens digit=x
the number: 10x+y

We suggest this system of equations:
x+y=7
(10y+x)=(10x+y)+9
we solve it by substitution method.
x=7-y
10y+(7-y)=(10(7-y)+y)+9
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9y+10y-y=70+9-7
18y=72
y=72/18=4

x=7-y
x=7-4=3

number=10x+y=10*3+4=30+4=34

solution: the number: 34

To check:
3+4=7
43=34+9
8 0
3 years ago
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Studentka2010 [4]

Answer:

I believe the answer is 20

Step-by-step explanation:

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What is the probability of the spinner landing on an odd number
Nadya [2.5K]

Answer:

1/50* 1/2  =0 .01

Step-by-step explanation:

First, the probability that the spinner lands on 20 is  

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, as 20 is one of the 50 numbers on the wheel, and each number has an equal probability of being selected.

Second, the probability that the spinner lands on an odd number is  

1/2

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