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Talja [164]
3 years ago
8

X decreased by 7 is 38

Mathematics
1 answer:
marshall27 [118]3 years ago
7 0

Answer:

45

Step-by-step explanation:

x - 7 = 38

add 7 to both sides to get the variable by itself

x = 45

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IF YOU ANSWER FIRST ILL GIVE BRAINLYEST
pickupchik [31]

Answer:

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Step-by-step explanation:

I dont know for sure but i think it might be.

3 0
2 years ago
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Determine if the statement is always, sometimes or never true. There are 300 degrees in the sum of the interior angles of a poly
Marrrta [24]

Answer:

Never

Step-by-step explanation:

Using the formula to find the sum of the interior angles, (n-2) * 180, we can work backwards.

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6 0
2 years ago
One sign lights up every 10 seconds. One sign lights up every 12 seconds. If they have just lit up at the same time, how many se
andrew11 [14]

Answer:

It will take 60 seconds for the signs to light up at the same time again.

Step-by-step explanation:

Given:

One sign lights up every 10 seconds

One sign lights up every 12 seconds

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To find in how many seconds will it take for the signs to light up at the same time again.

Solution:

In order to find the time in seconds will it take for the signs to light up at the same time again, we need to find the least common multiple of the the times for which the given signs light up.

The numbers are 10 and 12.

To find the LCM, we will list the multiples of each and check the least common multiple.

The multiples of 10 and 12 are :

10\rightarrow 10,20,30,40,50,60,70

12\rightarrow 12,24,36,48,60

thus, we can see that 60 is the least common multiple.

Thus, the signs will light up at the same time time after every 60 seconds.

7 0
3 years ago
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FrozenT [24]

Answer:

252

Step-by-step explanation:

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3 0
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A and B        because if you count they both have 16 and C has 25

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