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Elena L [17]
3 years ago
5

Anothony went out to eat dinner, and the meal cost $50.00. of Anthony received a 15% discount, what was th3 toy value of the dis

count?which one is right answers : A) 7.50 B)8.50 C)11.50 D)12.00
Mathematics
1 answer:
hammer [34]3 years ago
8 0
A) $7.50

Here's a simple 15% calculation trick:
First, take 10% of the number. We can do this by moving the decimal place to the right by one, so we take 50.0 and get 5.00. Then, we take half of that value, which is 2.5, and add them together to get 7.5, so $7.50 discount.
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D. 4/5 since
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3 years ago
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8 0
3 years ago
When Arianna, left her house, her cell phone was 45% charged started losing charge at a constant rate. 4 hours after leaving her
Setler [38]

Answer:

ur answer would be B, because you do 45-15 x 4

Step-by-step explanation:

6 0
3 years ago
What number must you add to complete the square?<br> x2 + 8x = 11
notsponge [240]

Answer:

16

Step-by-step explanation:

The number to add on both sides to complete the square is the square of the numerical coefficient that accompanies the term in "x", divided by 2.

That is in our case: (\frac{8}{2}) ^2 = 4^2=16

Therefore:

x^2+8x+16=11+16\\x^2+8x+16 = 27

That way the left hand side of the equation becomes the perfect square of the binomial: (x+4).

You can also prove that such is correct by developing the square of the binomial:

(x+4)^{2} = (x+4)(x+4)= x^2+4x+4x+16= x^2+8x+16

8 0
3 years ago
The area of a triangle can be represented by the equation h(2h-7)=4 where h is the height of the triangle find the height of the
Ket [755]
H=4. Solving the equation gives you two answers, 4 and -0.5 and since you can't logically have negative height, 4 is the only legitimate answer that is realistic.
6 0
3 years ago
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