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
Alexxandr [17]
3 years ago
13

A building supply company sells sand by the cubic yard. The price of one cubic yard of sand is $33.75. What do you think the pri

ce of one cubic foot of sand should be?
Mathematics
1 answer:
myrzilka [38]3 years ago
5 0

Answer:

<u>$911.25</u>

Step-by-step explanation:

We know:

1 yd = 3 feet

So, 1 cubic yards should be *THREE* times the power of what the initial scale factor is, 3 cubed. That would make it:

1 yd = 3 feet

1^3 yd = 3^3 feet

1 cu. yd. = 27 cu. ft.

That means, the price of 1 cubic feet of sand is 27 times of the price of 1 cubic yd price

33.75 * 27 = <u>$911.25</u>

You might be interested in
Tell what you would do to isolate the variable.
Marta_Voda [28]
3z=5 because that's the answer bro lol
7 0
3 years ago
A bacteria culture starts with 160 bacteria and grows at a rate proportional to its size. After 5 hours there will be 800 bacter
Leona [35]

Answer:

Step-by-step explanation:

Let the rate at which the bacteria grow be represented by the exponential equation

P(t) = P0e^kt

P(t) is the population of the bacteria after time t

P0 is the initial population

k is the constant of variation

t is the time

If the initial Population is 160 bacteria's, them the equation becomes;

P(t) = 160e^kt

b) if After 5 hours there will be 800 bacteria, this means

at t = 5 p(t) = 800

Substitute and get k

800 = 160e^5k

800/160 = e^5k

5 = e^5k

Apply ln to both sides

Ln5 = lne^5k

ln5 = 5k

k = ln5/5

k = 0.3219

Next is to calculate the population after 7hrs i.e at t = 7

P(7) = 160e^0.3219(7)

P(7) = 160e^2.2532

P(7) = 160(9.5181)

P(7) = 1522.9

Hence the population after 7houra will be approximately 1523populations

c) To calculate the time it will take the population to reach 2790

When p(t) = 2790, t = ?

2790 = 160e^0.3219t

2790/160 = e^0.3219t

17.4375 = e^0.3219t

ln17.4375 = lne^0.3219t

2.8587 = 0.3219t

t = 2.8587/0.3219

t = 8.88 hrs

Hence it will take approximately 9hrs for the population to reach 2790

7 0
3 years ago
Find the missing value.<br> (√24-√k)(√24+√k)=5
Anna [14]

Answer:

  • <u>k = 19</u>

Step-by-step explanation:

<u>Identity</u>

  • (a + b)(a - b) = a² - b²

<u>Simplifying the LHS (Left Hand Side)</u>

  • (√24-√k)(√24+√k)
  • (√24)² - (√k)²
  • 24 - k

<u>Equating to the RHS</u>

  • 24 - k = 5
  • k = 24 - 5
  • <u>k = 19</u>
4 0
2 years ago
Read 2 more answers
The hare challenged the tortoise to a race from the water fountain to the park bench. In order to ensure a fair race, the tortoi
BabaBlast [244]
A. I believe the hare never catches up to the tortoise
B. The hare waited 50 minutes before walking
C. The tortoise won the race
5 0
3 years ago
If r = 5 units and x = 8 units, then what is the volume of the cylinder shown above?
bazaltina [42]
it’s a if Iam not mistaken
3 0
3 years ago
Other questions:
  • it costs LE Stor $10 to buy a shirt. the store sells the shirt for 2 1/2 times its cost. what is the profit for 100 of these shi
    15·2 answers
  • A poll of 1,068 adult Americans reveals that 48% of the voters surveyed prefer the Democratic candidate for the presidency. At t
    14·1 answer
  • (4x+2y-6z) + (5y-2z+7x) + (-9z-2x-3y)
    8·1 answer
  • A metal worker makes a box from a 15inch by 20inch piece of tin by cutting a square with a side length x out of each corner and
    11·1 answer
  • PLEASE HELP ME I WILL GIVE BRAINLIEST.
    12·1 answer
  • Whats 5x+9y=26 in the algebra 1
    14·1 answer
  • How many 7/8 cup servings are in 1/2 cup of juice?
    11·1 answer
  • Simplify by combining like terms 5 4/7i+4 3/5i
    10·1 answer
  • A college professor hypothesizes that readers will comprehend more when reading a graphic novel than when reading text with no i
    15·1 answer
  • You can model an arch at your school using the equation $y=-0.5\left(x+4\right)\left(x-4\right)$ , where $x$ and $y$ are measure
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!