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Ivanshal [37]
2 years ago
9

If you had 10 questions on a test and you got 3 wrong what percentage is that?

Mathematics
1 answer:
Iteru [2.4K]2 years ago
6 0

Answer:

70% right, 30% wrong

Step-by-step explanation:

3 is 30% of 10

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Buying one movie ticket online costs $16.50. Two tickets cost $30.50. Assuming that the relationship is linear, use the drop dow
HACTEHA [7]

Answer:

C(n)=14n+2.50

Step-by-step explanation:

Let

n -----> number of tickets

C ----> represent the cost of buy n tickets online

we have the ordered pairs

(1,16.50) and (2,30.50)

<em>Find out the slope of the linear equation</em>

The formula to calculate the slope between two points is equal to

m=\frac{C2-C1}{n2-n1}

substitute the values

m=\frac{30.50-16.50}{2-1}

m=14

<em>Find the equation of the line in slope intercept form</em>

C=m(n)+b

we have

m=14

point(1,16.50)

substitute

16.50=14(1)+b

b=16.50-14

1b=2.50

substitute

C(n)=14n+2.50

The domain of the function is all positive integers (whole numbers) including zero

{0,1,2,3,4,...}

5 0
2 years ago
4. Use the substitution method to determine the solution to this system of equations.
N76 [4]

Answer:

No solution

Step-by-step explanation:

6X - 3Y = -9--------------(1)

- 2 X +Y= 5---------------(2)

from equation two,

Y = 5+2X------------------(3)

substitute equation (3) into equation (1)

6X-3(5+2X)= -9

opening bracket

6X-15-6X= -9

6X- 6X = -9+15

0 = 6

<h2>therefore the answer is no solution</h2>

3 0
1 year ago
A sunflower is 15 inches tall and grows 2 inches a week. How many weeks will it take for the
Zarrin [17]

Answer:

4 weeks

Step-by-step explanation:

15 + 2x = 23

2x = 8

x = 4

8 0
2 years ago
Classify each number below as a rational number or an irrational number.<br> rational irrational
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Rational
Irrational
Rational
Rational
Irrational
6 0
2 years ago
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Adam bought a fish aquarium worth $3,000 in the first week of the year. Its value depreciates by 3% per week. What will the valu
LenKa [72]

=0.75 times 3000=2250

7 0
2 years ago
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