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Alexus [3.1K]
3 years ago
8

Which expressions are differences of squares?

Mathematics
2 answers:
Alexus [3.1K]3 years ago
6 0
The answer is: w^2-121 and a^2-36. I am taking this test now. 

STALIN [3.7K]3 years ago
6 0
Your answer is C and D :) 
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klemol [59]

9514 1404 393

Answer:

  • waffle $8
  • hashbrowns $1.50

Step-by-step explanation:

Using w and h for the costs of a waffle and hashbrowns, respectively, we can write the equations for the purchase amounts as ...

  w + h = 9.50

  2w + 3h = 20.50

Subtracting twice the first equation from the second gives ...

  (2w +3h) -2(w +h) = (20.50) -2(9.50)

  h = 1.50 . . . . . . simplify

  w = 9.50 -h = 8.00 . . . . . find w using the first equation

The cost of a waffle is $8.00; the cost of hashbrowns is $1.50.

4 0
3 years ago
Alyssa goes out for dinner, and the price of her meal is $18. The sales tax on the meal is 6%, and she also wants to leave a 20%
Oksana_A [137]

Answer:

$22.68

Step-by-step explanation:

Meal Price =$18

Sales tax =6%

Tip = 20%

Total Price of the Meal =$18 + (6% of 18)+ (20% of 18)

=$18 + (0.06 X 18)+ (0.2 X 18)

=18+1.08+3.6

=$22.68

The total price of Alyssa's meal is $22.68.

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3 years ago
X=1.2(60)<br> I need major help
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Answer:

x= 72

Step-by-step explanation:

simplify 1.2 × 60 will equal 72 so therefore x will be 72

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