1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
valina [46]
3 years ago
5

The drama teacher decreased the length of a play from 90 minutes to 60 minutes. What was the percent decrease in the length of t

he play?
Mathematics
1 answer:
MrMuchimi3 years ago
3 0

Answer:

it was decreased by 67%

Step-by-step explanation:

You might be interested in
PLEASE HELP ASAP ILL GIVE BRAINLIEST!!!!!<br><br>find measure of arc MK​
Gwar [14]

Answer:

Arc length MK = 15.45 units (nearest hundredth)

Arc measure = 58.24°

Step-by-step explanation:

Calculate the measure of the angle KLN (as this equals m∠KLM which is the measure of arc MK)

ΔKNL is a right triangle, so we can use the cos trig ratio to find ∠KLM:

\sf \cos(\theta)=\dfrac{A}{H}

where:

  • \theta is the angle
  • A is the side adjacent the angle
  • H is the hypotenuse (the side opposite the right angle)

Given:

  • \theta = ∠KLM
  • A = LN = 8
  • H = KL = 15.2

\implies \sf \cos(KLM)=\dfrac{8}{15.2}

\implies \sf \angle KLM=\cos^{-1}\left(\dfrac{8}{15.2}\right)

\implies \sf \angle KLM=58.24313614^{\circ}

Therefore, the measure of arc MK = 58.24° (nearest hundredth)

\textsf{Arc length}=2 \pi r\left(\dfrac{\theta}{360^{\circ}}\right) \quad \textsf{(where r is the radius and}\:\theta\:{\textsf{is the angle)}

Given:

  • r = 15.2
  • ∠KLM = 58.24313614°

\implies \textsf{Arc length MK}=2 \pi (15.2)\left(\dfrac{\sf \angle KLM}{360^{\circ}}\right)

\implies \textsf{Arc length MK}=\sf 15.45132428\:units

6 0
2 years ago
Explain why the expression 7•3x is not equal to the expression 21x
Firdavs [7]
Working out the expression 7(3ˣ) is first to calculate the value of 3ˣ then multiply the answer to 7.

For example, let x = 2
Then 7(3ˣ) = 7(3²) = 7 × 9 = 63

With the same value of x = 2, calculating 21ˣ = 21² = 441, which isn't the same answer with the expression 7(3ˣ)
5 0
3 years ago
There are 4 white and 5 red (indistinguishable) balls in a bag. Suppose you draw one ballout at a time without replacement and s
Alchen [17]

Answer:

5/9

Step-by-step explanation:

What we have in this question are four white balls and 5 red balls.

This is the sample space

[(4w,0R) (4w,1R)(4w,2R)(4w,3R)(4w,4R)(0w,5R)(1w,5R)(2w,5R)

So we have 9 possible sets of events

The event number with the last ball being white = 5

Probability of the last ball drawn being white = 5/9

= 0.56

5 0
3 years ago
What is 1/35 divided by 2 5/7? Please help!
11Alexandr11 [23.1K]

Answer:

1/95

Step-by-step explanation:

2 5/7 = 19/7

1/35 divided by 2 5/7

1/35 ÷ 19/7

1/35 × 7/19

1 × 7/35 × 19

7/665 = 1/95

8 0
2 years ago
The length of a rectangle is 54cm it's breadth is 8cm what is it's perimeter ? what is it's area?​
il63 [147K]

Answer:

perimeter = 2(length + breadth) \\  =2 (54 + 8) \\  = 124 \: cm

7 0
3 years ago
Other questions:
  • What is the equation, in point-slope form, of the line that is parallel to the given line and passes through the point (−3, 1)?
    14·2 answers
  • karen wants to find the area of the isosceles triangle ABC. she knows that the base of the triangle (side CB) is equal to 8 squa
    10·2 answers
  • line L passes through point (2, -5) and is perpendicular to the line with equation y=7. determine the equation of line L
    13·1 answer
  • the large Square above has area 9 is divided into 9 smaller squares of equal area what is the length of how strong and bold
    6·1 answer
  • 9 is what percent of 50
    12·1 answer
  • Heklp me again please if you dont mind
    15·1 answer
  • (30)(-30) ANSWER QUICK IM DOING A WORKSHEET IN CLASS
    11·1 answer
  • What is the answer 2(x - 5) ≤ - 16
    5·1 answer
  • Cost of an oil change: $19.95<br><br> Discount: 33%<br><br> What is the new cost?
    13·2 answers
  • Julian opened a college savings account. The amount of money in his account can be calculated using the function C(t) = 500(1.03
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!