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Nadusha1986 [10]
3 years ago
15

Madeline was out at a restaurant for dinner when the bill came. Her dinner came to $13. After adding in a tip, before tax, she p

aid $15.34. Find the percent tip.
Mathematics
2 answers:
Debora [2.8K]3 years ago
6 0

Answer:0.351

Step-by-step explanation:

dusya [7]3 years ago
4 0

Answer:

18%

Step-by-step explanation:

On delta math

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Solve for h. Round to the tenths place. Show your work.
Vinvika [58]
You can use the Pythagorean theorem for this problem.
a^2 + b^2 = c^2
a^2 + 5^2 = 10^2
a^2 + 25 = 100
a^2 = 75
a = 8.66

h = 8.7

Hope this helps =)
4 0
4 years ago
Which of the following quadratic equations has no real solutions?
Virty [35]

Answer:

C. 3x^2 + 2x + 1

Step-by-step explanation:

A. 12^2 - (4*3*12) = 0 (there's one solution.)

B. (-3)^2 - (4*3*-18) = 255 (there're 2 real solutions.)

D. 3^2 - (4*0*-3) = 9 (there're 2 real solutions.)

C. 2^2 - (4*3*1) = -18 ✅✅

if b^2 - 4ac = negative then we can say that there isn't any real solution for the equation.

8 0
4 years ago
Is -5 a solution to the equation 6x+5=5x+8+2x
SVETLANKA909090 [29]
6x+5=5x+8+2x
Add 2x to 5x
6x+5=7x+8
Subtract 6x from both sides
5=x+8
Subtract 8 from both sides
Final Answer: -3=x

And so no, -5 is not the solution to this equation.
7 0
3 years ago
A number is rounded to the nearest tenth and hundredth. What is the number that was rounded? (2 points)
Butoxors [25]

Answer:

B

Step-by-step explanation:

For the tenths, if the hundredths digit is above 5, it rounds up. 7 is greater than 5, so it rounds the whole number to 0.6

For the hundredths, if the thousandths number is greater than 5, it rounds up. 8 is greater than 5, so it rounds the whole number to 0.58

5 0
4 years ago
How would you classify the number 121?
Dahasolnce [82]

Answer:

121 is a rational number, a perfect square.

Step-by-step explanation:

I know its a short answer, but I hope it helps.

8 0
3 years ago
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