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katrin2010 [14]
2 years ago
12

(show ur work) You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

Mathematics
2 answers:
Liono4ka [1.6K]2 years ago
5 0
since there’s 40 dollars total, divide it by 5.
40/5 = 5

$5 per pound
vesna_86 [32]2 years ago
3 0

Answer:

8 dollars per pound

Step-by-step explanation:

40 divided by 5 will give you the $/lb

40/5=8 so its $8/lb

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Given h of x equals negative 2 times the square root of x minus 3 end root, which of the following statements describes h(x)?
MrMuchimi

Answer:

The function h(x) is decreasing on the interval (3, ∞).

Step-by-step explanation:

Please take a look at the attached image.

You will see a graph of the given function h(x) = -2\sqrt{x-3}. The function is decreasing.

The function starts at 3 and starts to go towards negative infinity on the x-axis. Therefore the function is decreasing on the interval (3, ∞).

3 0
2 years ago
Which factored form of 10x + 120x + 320 reveals all the zeros of the function it defines?
Readme [11.4K]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
The population at Bishop High School is 2000 students in 2011. Every year the population decreases by 50 students
Artemon [7]

Answer:

  • Let p be the population at t be the number of years since 2011.  Then, p=2000-50t
  • The projected population of the high school in 2015=1800
  • In <u>2019</u> the population be 1600 students

Step-by-step explanation:

Given: The population at Bishop High School students in 2011 =2000

Also,  Every year the population decreases by 50 students which implies the rate of decrease in population is constant.

So, the function is a linear function.

Let p be the population at t be the number of years since 2011.

Then, p=2000-50t

So at t=0, p=2000

In year 2015, t=4, substitute t=4 in the above equation ,we get

p=2000-50(4)\\\Rightarrow\ p=2000-200\\\Rightarrow\ p=1800

Hence, the projected population of the high school in 2015=1800

Now, put p=1600 in the function , we get

1600=2000-50t\\\Rightarrow50t=2000-1600\\\Rightarrow50t=400\\\Rightarrow\ t=\frac{400}{50}\\\Rightarrow\ t=8

Now, 2011+8=2019

Hence, in <u>2019</u> the population be 1600 students




6 0
3 years ago
you are going on vacation and leaving your dog in a kennel. kennel a charges $25 per day which includes a one-time grooming trea
rewona [7]

Answer:

is this a quiz?

Step-by-step explanation:

8 0
3 years ago
Mustafa contributes 11% of his $67,200 annual salary to his 401(k) plan. What is his pretax income?
Juli2301 [7.4K]
11% of $67,200.
We need to keep in mind that some words and numbers here aren't important, like 401(k) plan. 
So what is 11% of $67,200?

\frac{11}{100}  * $67,200&#10;

11*$672

$7392

Hope this helps!
5 0
3 years ago
Read 2 more answers
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