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nordsb [41]
3 years ago
15

22broccy-here you go g- what is the sum of negative two squared plus one?

Mathematics
2 answers:
yaroslaw [1]3 years ago
8 0

Answer:

The sum is equal to 5

Step-by-step explanation:

we know that

The algebraic expression of the phrase "  the sum of negative two squared plus one" is equal to

(-2)^{2}+1\\=4+1\\=5

barxatty [35]3 years ago
8 0

Answer:

5

Step-by-step explanation:

(-2)^2 +1

Since the quantity is squared, it becomes a positive number

4+1

5

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salma purchased a prepaid phone card for $20. long distance calls cost 24 cents a minute using this card. salma used her card on
suter [353]
We can set up an equation to solve this problem, but first we need to write out what we know.

$20 overall
$0.24 every minute
$13.52 remaining on the card

Now that we know our information, we can set it up in an equation. 

20 - 0.24x = 13.52

The 20 represents $20 overall when she first got the phone card.
We are then subtracting $20 from how must it costs a minute (which is 24 cents). The 'x' indicates the number we are trying to find (how many minutes her call lasted). Lastly, 13.52 is the result of everything, since she has $13.52 remaining on the card.

We can now solve the equation:

20 - 0.24x = 13.52
-0.24x = 13.52 - 20 /// subtract 20 from each side
-0.24x = -6.48 /// simplify
x = 27 /// divide each side by -0.24

Our solution is: x = 27.

-----

An easier way to solve this problem would be to first, subtract the total amount of money she had on the card when she first got it, and then the remaining total she ended up with.

$20 - $13.52 = $6.48

So, she spent a total of $6.48 on long distance calls, but since we are looking for how many minutes, we need to divide the total she spent and how much it costs per minute.

6.48 ÷ 24 = 27

We receive the same amount of minutes spent just like we did the last way we solved.

-----

Salma spent 27 minutes on the phone. 
3 0
3 years ago
Todd is training to bike in the Turkey Trot Bike Race and rode his bike 7 ¾ miles per hour for 2 2/3 hours. How many miles did T
trapecia [35]
(7 3/4 mi/h)*(2 2/3 h) = 20 2/3

Todd rode 20.667 miles.
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A calculator that works with mixed numbers is a handy thing.
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tigry1 [53]

Answer: it’s 1160000

Step-by-step explanation: hope I helped:)

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2 years ago
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Wewaii [24]

Answer:

5.16 6.77 8.96.8u .987

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3 years ago
The ratio of apples to orgens is 1 to 3
-BARSIC- [3]
Because the ratio is 1 to 3. It means that For every one apple there are 3 oranges. So If there are 2 apples, there would n 6 oranges. If there are twelve apples, there would be 36 oranges. To find the number of oranges for the amount of apples, just multiply the number of apples by 3.
8 0
3 years ago
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