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
lara31 [8.8K]
3 years ago
13

two years ago the water in a local reservoir fell 8 3/4 feet then it rose 4 3/5 how much did it change

Mathematics
2 answers:
Wittaler [7]3 years ago
8 0
To find the change, we need to subtract.

8 3/4 - 4 3/5

We need a common denominator to find the answer.

3*5/4*5 = 15/20

8 15/20

3*4/5*4 = 12/20

4 12/20

Now we can properly subtract

8-4=4

15-12
-------- = 
  20 

3/20 

Now we have our final answer: 4 3/20

The change : 4 3/20


scoundrel [369]3 years ago
4 0
WORK:
8 3/4 = 8 15/20
4 3/5 = 4 12/20

8 15/20 - 4 12/20 = 4 3/20

ANSWER:
4 3/20
You might be interested in
Factoring polynomials
-Dominant- [34]
1. x(2x^2-x+4)
2.-3(y-1)(y+2)
3.-(11w^2+18w-1)

7 0
3 years ago
Hey guys please help!!
Advocard [28]

Answer:

<em>Yes</em>

Step-by-step explanation:

g(x) = - \frac{1}{4} x + \frac{1}{4}

y = - \frac{1}{4} x + \frac{1}{4} ....... <em>(1)</em>

<em>(1)</em> × 4

4y = - x + 1

x = - 4y + 1

y = - 4x + 1

f(x) = - 4x + 1

∴ f(x) and g(x) <em>are inverses</em>

8 0
2 years ago
Find the sum of this infinite geometric series where a1=0.3 and r=0.55
Lisa [10]
Hello, Marymack!


We know that in a geometric sequence defined by \mathsf{a_1} and \mathsf{r} , the sum can be calculated the following way:

\mathsf{S_n = \dfrac{a_1}{1-r}}\\ \\ \\ \\ \mathsf{S_n = \dfrac{0.3}{1-0.55}}\\ \\ \\ \mathsf{S_n = \dfrac{0.3}{0.45}}\\ \\ \\ \boxed{\mathsf{S_n = \dfrac{2}{3}=0.666...}}
3 0
3 years ago
Read 2 more answers
PLEASE HELP ME ASAP! ILL GIVE YOU BRAINLEST!
Helen [10]

Answer:

13/99

Step-by-step explanation:

First convert the expression, turn 13 into 13/1: 13/1 × 1/99

Next you multiply: 13/1 × 1/99 = 13/99

4 0
3 years ago
Susie is 5 times the age the she was twenty years ago. How old is she now?
AlekseyPX

Answer:

100 yrs old

Step-by-step explanation:

20 times 5

8 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the equation<br> 1/2(2x-10)=4
    13·2 answers
  • 20 POINTS AND BRAINIEST ANSWER
    10·2 answers
  • How many inches are in 7 yards
    9·2 answers
  • Richard works from 11:00am to 3:00am dinner break is 75% of the way though work shift what time is his dinner break
    14·1 answer
  • Which part of a pictograph provides an overview of the information in the chart?
    11·1 answer
  • Using the numbers 1,2,3,4,5,6,7,8,9 use four to make it equal 19 you may only use these numbers once! Thank you! Example: 5+3+7+
    15·2 answers
  • A Florida factory produces fishing reels at a rate of 800 per day, every day. In April, they are forced to cut their production
    10·2 answers
  • Choose the correct formula to find the area of the oblique ABC shown below. Select all that apply.
    6·1 answer
  • A thumbtack that is tossed can land point up or point down. The probability of a tack landing point up is 0.2. A simulation was
    12·2 answers
  • If C=5/9(F-32), what is F when C=20?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!