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
exis [7]
2 years ago
7

7. This year, the water in a reservoir dropped by 60%. For the original water level to be restored next year, by what percent mu

st the remaining reserves increase?
Mathematics
1 answer:
ale4655 [162]2 years ago
8 0

Answer:

Given: Water in a reservoir dropped by 60%

Step-by-step explanation:

let the total water level of reservoir be 100.

then, in first year

the water reservoir dropped = 60% of 100

                                               =\frac{60}{100} * 100

                                               = 60

therefore, total water level needed to be restored till next year= 100

remaining water level to restore till next year= 100-60

                                                                           =40

                                                       percentage= \frac{40}{100} * 100

                                                                         =40%

                     

You might be interested in
I need help with number 2!! please help!
Maurinko [17]

Answer:

12.68

Step-by-step explanation:

76 degrees /2 = 38

Half the width of 15m forms the lower side of the triangle: 7.5 m

sin(38) = 7.5/h

=12.1820

12.18+.5

12.68

5 0
3 years ago
Kristin is 20 miles behind a truck that is driving 50 miles per hour. How long will it take her to catch up to the truck? How fa
creativ13 [48]
<span>t = 20/(r-50)</span>t=20/r-50 hours

8 0
3 years ago
There are ___ nuts are in the smallest possible container.
NARA [144]
Small is the blank which is th answer
8 0
3 years ago
(b) If the sum of two consecutive odd numbers is 48, find the numbers.​
Rudiy27

Answer:

23, 25

Step-by-step explanation:

let the first number be represented as A, since there are two odd numbers, the second number would be A + 2

A + A+2 = 48

2A + 2 = 48

2A = 48 - 2

2A = 46  ( divide both sides by 2)

A = 23

since we know the next number to be A + 2

= 23 + 2 = 25

the two numbers are 23 and 25

6 0
2 years ago
If cos θ &gt; 0, which quadrant(s) could the terminal side of θ lie?
Sergeeva-Olga [200]

Answer:

I and IV

Step-by-step explanation:

cosine is positive/greater than 0 in quadrants I and IV. Its just a rule of the unit circle.

Can remember by All Star Trig Class

meaning all the trig funtions are positive in quadrant I

sin is positive in II

tan is positive in III

and cos is positive in IV

8 0
3 years ago
Other questions:
  • Zoe is packaging a gift to send in the mail. A smaller gift box is placed inside a similar yet larger packaging box. The empty s
    7·2 answers
  • Find the product.
    8·2 answers
  • Find the domain and range of the INVERSE of the given function.<br> Square root x-3
    6·1 answer
  • Lucille has a collection of more than 500 songs on her phone that have a mean duration of 215 seconds
    15·1 answer
  • I NEED HELP NOW What is the equation in slope-intercept form of the linear function represented by the table? x y –6 –18 –1 –8 4
    11·2 answers
  • The cost to repair a car after a collision was $2,700. The automobile insurance policy paid the entire bill except for a $675 de
    11·1 answer
  • A summer camp is organizing a hike and needs to buy granola bars for the campers. The granola bars come in small boxes and large
    13·1 answer
  • Please help me!!!!!!!!!!!
    15·1 answer
  • HELP DESPERATE 50 POINTS AND BRAINLIEST!!!!!
    14·2 answers
  • Can someone answer this question please
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!