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Goryan [66]
3 years ago
9

Janice is training for a 5K. She predicted she would spend 90 minutes running this week. She actually ran for a total of 120 min

utes. What is her percent
error?
Mathematics
2 answers:
Contact [7]3 years ago
7 0

Answer:

33%

Step-by-step explanation:

She is 33% off. She was planning to run 90 minutes, but ran 30 minutes more, which is 33.3333333333% percent of 90.

Levart [38]3 years ago
4 0
I agree with the other person that this is 25% error
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Find the greatest common factor of 24, 36, and 48. help
Dimas [21]

Answer:

24, 36, and 48

Step-by-step explanation:

those numbers are the most high common factor of 24, 36, and 48.

7 0
2 years ago
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Find the circumference and the area of a circle with radius 7 yd . Use the value 3.14 for π , and do not round your answers. Be
Elina [12.6K]
7•2=14
3.14•14=
Answer: 43.96 yds
(I hope this help :) sorry if I’m incorrect)
7 0
3 years ago
Emily plays on the softball team at her school.The team won 9 of its first 12 games.At that rate how many games will Emily’s tea
KATRIN_1 [288]

Answer:

B

Step-by-step explanation:

B. 48

9/12 must equal the x/64. 64/12 is 5.33333 repeating so multiply 9 x 5.33333 repeating would equal to 48

5 0
3 years ago
Complete the description of the piecewise function graphed below. Use interval notation to indicate intervals.
Gemiola [76]

Answer:

{ -2 if x ∈ -4 < x < -3

{ -5 if x ∈ -3 ≤ x < 2

[ 5 if x ∈ 2 ≤ x < 5    

Step-by-step explanation:

From the graph, we have;

{ -2 if x ∈ -4 < x < -3

For the next inequality line at y = -5, we have;

1) The inequality line, starts with an open circle on the left at x = -3, which is equivalent to less than or equal to symbol, ≤ as -3 ≤ x because the point x =-3 is the left boundary.  The inequality line extends to the point x = 2, where we have a closed circle (on the right), which is equivalent to a x ≤ 2 with the 2 on the right hand side because, the 2 is the right boundary of the inequality

2) The inequality can be summarized as starting from x = -3 extends to x = 2

3) As stated in point 1) the point x = 3, we have -3 ≤ x and at point x = 2, we have x ≤ 3 which can be combined as  -3 ≤ x < 2, to give;

{ -5 if x ∈ -3 ≤ x < 2

For the next inequality line at y = 5, we have;

1) The inequality line, starts with an open circle on the left at x = 2, which is equivalent to less than or equal to symbol, ≤ as 2 ≤ x because the point x =2 is the left boundary.  The inequality line extends to the right to reach point x = 5, where we have a closed circle (on the right), which is equivalent to a x ≤ 5 inequality, with the 5 on the right hand side because, the 5 is the right boundary of the inequality

2) The inequality can be summarized as starting from x = 2 extends to x = 5

3) As stated in point 1) the point x = 2, we have 2 ≤ x and at point x = 5, we have x ≤ 5 which can be combined as  2 ≤ x < 5, to give;

[ 5 if x ∈ 2 ≤ x < 5.

7 0
3 years ago
Solve for X <br><br>Explain if possible :)
sweet-ann [11.9K]

The two labeled angles are alternate interior angles, and as such, they are the same.

From this result you can build the equation

15x-2 = 13x+2

and solve it for x: subtract 13x from both sides to get

2x-2=2

and add 2 to both sides to get

2x = 4 \implies x = 2

Check: if we plug the value we found we have

13\cdot 2 + 2 = 26+2 = 28 = 15\cdot 2 - 2 = 30-2

So the angles are actually the same, as requested.

4 0
3 years ago
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