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
Marina86 [1]
2 years ago
12

The water level in Rocky's lake changes on an average of -7/16 every 3 years. Based on the rate of the level, how much will the

water level change after a year
Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
5 0

Answer:

-7/ 48

Step-by-step explanation:

Given that:

Average change in water level per 3 years = - 7/16

This means the water level decreases by - 7/16 on average every 3 years

The change in water level after a year will be ;

-7/16 = 3

x = 1

Cross multiply ;

3x = - 7/16

Divide both sides by 3

x = -7/16 ÷ 3

x = - 7/16 * 1/3

x = - 7 / 48

Hence, water level will change by - 7/48 after a year.

You might be interested in
If the diameter of the circle is 24 cm, find its area correct to one decimal place.
Radda [10]

Answer:

A=pi times radius squared

24/2= 12 is the radius (since it's half of diameter)

A=pi times 12 squared

12 squared is 12 times 12 which is 144

A=pi times 144

A=452.389342

Rounded to 452.4

4 0
3 years ago
Evaluate expression 20+3c+17d when c=8 and d=2.
Tems11 [23]
Just plug in the numbers for the variables.


20+3(8)+17(2)=
3 0
3 years ago
the taxi charges a flat fee of $3.75, plus $1.50 per kilometer driven. What is the total cost of a 10 km trip?
Lubov Fominskaja [6]

Answer:

$18.75

Step-by-step explanation:

Let

y = Total cost

x = number of kilometers

The equation:

y = 3.75 + 1.50x

If x = 10 km

y = 3.75 + 1.50(10)

= 3.75 + 15

= 18.75

y = $18.75

y = Total cost = $18.75

7 0
2 years ago
PLEASE SHOW WORK A coffee distributor needs to mix a(n) Gualtemala Antigua coffee blend that normally sells for $10.30 per pound
Katarina [22]

Answer:

23 pounds of the Gualtemala Antigua Blend and 37 pounds of the Tanzanian Blend

Step-by-step explanation:

you need to make a system of equations to solve this.

First lets make x be the pounds of Gualtemala Antigua coffee blend and y the pounds of Tanzanian coffee blend

we know we need 60 pounds total so first equation is

x+y=60

Next we will make an equation based on the money information

10.30x + 13.80y = 12.46(60)

10.30x + 13.80y = 747.60

So our system of equations is

x + y = 60

10.30x + 13.80y = 747.60

I will solve this by using substitution. first rewrite x+y=60 to y=60-x

now i can substitute that into the other equation for y and solve for x

10.30x + 13.80(60-x) = 747.60

10.30x + 828 -13.80x = 747.60

-3.5x + 828 = 747.60

-3.5x = -80.4

x = 23  (rounded from 22.9714 since they requested that)

now I can use this solution to solve for y by plugging into one of the original equations

x + y =60

23 + y =60

y = 37

Finally we can say that they must mix 23 pounds of the Gualtemala Antigua Blend and 37 pounds of the Tanzanian Blend.

5 0
3 years ago
Is this number written in scientific notation 4.8•100^7
Ne4ueva [31]
No this number is not written in scientific notation
In scientific notation, it'll look like
4.8 * 10 ^14

In scientific notation it's 10 ^ n
NOT 100^n

Hope this helps 
3 0
3 years ago
Other questions:
  • If the concentration of mercury in the water of a polluted lake is 0.300 μg (micrograms) per liter of water, what is the total m
    11·1 answer
  • Which statement is true about the sides
    9·1 answer
  • The midpoint between y and 33 is -7. Find y
    8·1 answer
  • Which test could you use to prove these triangles are congruent
    8·1 answer
  • Two numbers are in the ratio 3: 7. If 1 is added to the smaller number and 7 is added to the larger, they will be in the ratio 1
    5·1 answer
  • How do i do this b+1/3
    8·1 answer
  • a television regulary cost $180 but it is on sale for 40% off this is a 5% sales tax on the sale price how much does the televei
    5·1 answer
  • Which of the following is a polynomial?
    14·1 answer
  • Lucas wants to have at least $4,000 in his account. He has $2,500 to deposit into an account that earns simple interest at a rat
    8·1 answer
  • Use algebra to explain how you know that a rectangle with side lengths one less and one more than a square will always be 1 squa
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!