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
Katyanochek1 [597]
3 years ago
6

What’s the unit rate for 2550 gallons in 30 days round to the nearest hundredth

Mathematics
1 answer:
kodGreya [7K]3 years ago
7 0

We assume the unit of interest is 1 day.

(2550 gal)/(30 day) = 85.00 gal/day

You might be interested in
Help plz !!! thx have a good day!
Aleksandr-060686 [28]

Answer:

Substitution

Step-by-step explanation:

tbh i havent checked so sorry if its wrong

3 0
3 years ago
Does anyone understand how to do this
Lerok [7]

Answer:

Step-by-step explanation:

I understand it!  (But I'm a high school math teacher so it might be unfair!) ; )

Anyway you have 2 numbers.  You don't know what they are so we will call them x and y.  Our first statement says that these numbers multiply to equal 120.  So that first equation is

xy = 120

Our second statement says that they add to -22.  So that second equation is

x + y = -22

Now we need to find the 2 numbers.  We have 2 unknowns, x and y.  That means that we have to have 2 equations.  No more than 2 no less than 2.  Solve the first equation for y.  It doesn't matter which equation you pick and which variable you choose to solve for.  If you do the work correctly, you will get the correct answers either way.  Solving the first equation for y gives you:

y=\frac{120}{x}

Now tht we have a value for y, we can use the substitution property of equality to sub that value into the second equation for y:

x+\frac{120}{x}=-22

Instead of finding a common denominator, we are going to eliminate x in the denominator altogether.  Do this by multiplying everything by x to get

x^2+120=-22x

Get everything on one side of the equals sign and factor:

x^2+22x+120=0

Because 12 * 10 = 120 and 12 + 10 = 22, our factors are 12 and 10:

x^2+12x+10x+120=0

Use factoring by grouping now.  

(x^2+12x)+(10x+120)=0

From the first set of parenthesis you can factor out an x, and from the second set you can factor out a 10:

x(x + 12) + 10(x + 12) = 0

Now factor out the common x + 12 to get a factored quadratic:

(x + 12)(x + 10) = 0

By the Zero Product Property, either x + 12 = 0 or x + 10 = 0.  Solving both for x gives you x = -12 or x = -10.

If x = -12, then

-12 + y = -22 so

y = -10

If x = -10, then

-10 + y = -22 so

y = -12.

The combinations of x and y are:

If x = -12, y = 10

If x = -10, y = -12

It doesn't matter which one is which.  They are not asking you to specifically define x and y.  They are asking you to find the numbers, and you did!

6 0
3 years ago
What is 0.000000025 written in exponent form<br><br><br><br><br> plz hurry
Evgesh-ka [11]

Answer:2.5×10^-5. (And i think u meant in Scientific Notation)

Step-by-step explanation//Give thanks(and or Brainliest) if helpful (≧▽≦)//

4 0
3 years ago
Do both of them for 50 points
erastovalidia [21]

Answer:

1) 5.44, 2) 3.9

Step-by-step explanation:

1) a/b + 2b - a^2 when a = 1.4 and b = 0.2

plug in the values:

1.4/0.2 + 2(0.2) - (1.4)^2 = 7 + 0.4 - 1.96 = 5.44

2) a[b-2c]^3 - d/e when a = 2, b = -0.75, c = -1, d = 0, e = -12 5/7 (rewritten to -89/7 = 12.71)

again, plug in the values:

2[-0.75-2(-1)]^3 - 0/12.71 = 2[1.25]^3 - 0 = 2[1.95] = 3.9

5 0
2 years ago
Convert 6 feet into meters. round to the nearest tenth
kirza4 [7]
20 feet.

..........
7 0
2 years ago
Read 2 more answers
Other questions:
  • How to find the area of a rhombus given height and side length?
    12·1 answer
  • What is the area of the triangle <br> O 20cm<br> O 10cm<br> O 16cm<br> O 17cm
    14·1 answer
  • Can someone please help me with this!!!
    12·1 answer
  • Find the quotient of 9/5 over8
    14·2 answers
  • How do you differentiate linear equation from those equatipn which are not linear?​
    9·1 answer
  • Jane is organizing a fundraiser to buy a ping-pong table for the community center. The table costs $500.00. Jane is asking contr
    7·1 answer
  • X+12x-13 = 0 and azo, what<br>is the value x+lo?​
    8·1 answer
  • Lines AB and CD are straight lines. Find x and y. Give reasons to justify your solutions.
    7·1 answer
  • A bag contains five red marbles 3 blue marbles and 7 yellow marbles into remodels which radio can be used to compare the yellow
    7·1 answer
  • A stack of boards is 21 inches high. The boards are 1 3/4 inches thick.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!