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Talja [164]
4 years ago
10

499 - 210 = 220 - ___

Mathematics
1 answer:
gayaneshka [121]4 years ago
8 0

Answer:

499- 210=220 -69

Step-by-step explanation:

220- -69= 289

So the answer is -69

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The math department needs to buy new textbooks and laptops for the computer science classroom. The textbooks cost $116.00 each,
Oksana_A [137]

Answer:

6 laptops.

Step-by-step explanation:

$6500 is the budget. If each textbook costs $116, and 30 textbooks are needed, you multiply.

116 x 30 = 3480.

3480 was spent on the textbooks, and the rest needs to go into laptops.

6500 - 3480 = 3020.

Now to find out how many laptops can be bought with the remaining money, divide.

3020 / 439 = 6.88 (You can't buy a portion of a laptop, so you have to take the biggest whole number, which is 6).

6 0
4 years ago
The equation which represents x, the width of the border is 2 left-bracket (12 + 2 x) + (15 + 2 x) right-bracket = 74. What is t
bulgar [2K]

Answer:

2 1/2

Step-by-step explanation:

If you do the step by step calculation:

Step 1: Simplify both sides of the equation.

2(12+2x+15+2x)=74

(2)(12)+(2)(2x)+(2)(15)+(2)(2x)=74(Distribute)

24+4x+30+4x=74

(4x+4x)+(24+30)=74(Combine Like Terms)

8x+54=74

8x+54=74

Step 2: Subtract 54 from both sides.

8x+54−54=74−54

8x=20

Step 3: Divide both sides by 8.

8x divide by 8 and that is 20 divided by 8

leaves you with the answer 5/2.

If you then turn the improper fraction into a mixed fraction you get 2 and one half.

Answer= 2 1/2 or "a" <u>DEPENDS ON WHAT QUIZ YOU HAVE</u>

Peace!

4 0
4 years ago
A polygon with 12 sides is called a/an dodecagon
kobusy [5.1K]
This is true a polygon with 12 sides is called a dodecafon.
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Do we have a model, or anything to go by?


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Answer:

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Step-by-step explanation:

3 0
3 years ago
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