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2 years ago

What is the unit price if 4 pounds of fruit cost $6.48

Mathematics

2 answers:

ArbitrLikvidat [17]2 years ago

8 0

It's $6.48 divided by 4. So the answer is $1.62

yuradex [85]2 years ago

3 0

The cost would be 6.48÷4 = $1.62 per pound.

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1. Contaminated water is subjected to a cleaning process. The concentration of the pollutants is initially 5 mg per liter of wat

Art [367]

Answer:

$C(t)=5\cdot(0.9)^t$

Step-by-step explanation:

The exponential function is often used to model natural growing or decaying processes, where the change is proportional to the actual quantity.

An exponential decaying function is expressed as:

$C(t)=C_o\cdot(1-r)^t$

Where:

C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

r is the decaying rate, expressed in decimal

The concentration of the pollutants starts at Co=5 mg/lt. We also know the pollutant reduces its concentration by 10% each hour. This gives us a value of r = 10% / 100 = 0.1

Substituting into the general equation:

$C(t)=5\cdot(1-0.1)^t$

Operating:

$\boxed{C(t)=5\cdot(0.9)^t}$

7 0

2 years ago

Mrs.thapa bought 150 kg of oranges.18 kg of oranges were rotten and not fit for selling.If she sold the remaining quantity of or

kogti [31]

Answer:

Rs.64

Step-by-step explanation:

Amount of oranges:

150 kg

Oranges sold:

150 - 18 = 132 kg

Money made:

132* 80 = Rs. 10560

Selling price of 150 kg:

10560/150 = Rs. 70.4

Cost price:

x+10% = 70.4
x*1.1= 70.4
x= 70.4/1.1
x= Rs.64
Cost price of oranges= Rs. 64

3 0

2 years ago

Read 2 more answers

Can someone help me solve this :

bija089 [108]

Answer:

The total cost of 5 pillows and 7 sheets is $205.345

Step-by-step explanation:

Let x be the price of pillow case

We are given that the price of the pillows is 3 times as much as the price of a pillow case

Price of pillow = 3x

Price of 2 pillows = 2(3x)=6x

Price of 3 pillow case = 3x

At a store, 2 pillows and 3 pillow cases together cost $73.08.

So, 6x+3x=73.08

9x=73.08

$x=\frac{73.08}{9}$

x=8.12

So, Price of 1 pillow case = 8.12

Price of 1 pillow = 3x=3(8.12)=24.36

Price of 3 pillow =3(24.36)=73.08

Let y be the cost of 1 sheet

The total cost of 3 pillows and 4 sheets is $120.82

So, 73.08+4y=120.82

$y=\frac{120.82-73.08}{4}$

y=11.935

Price of 1 sheet = 11.935

Price of 7 sheets = 7(11.935)=83.545

Price of 5 pillows =5(24.36)=121.8

So,the total cost of 5 pillows and 7 sheets=83.545+121.8=205.345

Hence the total cost of 5 pillows and 7 sheets is $205.345

5 0

2 years ago

Suppose a term of a geometric sequence is a4 = 121.5 and the common ratio is 3. write the formula for this sequence in the form

9966 [12]

The rule of the geometric sequence is $a* r^{n-1}$
a ⇒⇒⇒ the first term
r ⇒⇒⇒ common ratio

Given: the fourth term (a4) = 121.5 and the common ratio = 3 and n = 4

∴ $121.5 = a* 3^{4-1}$
∴ a = 121.5/3³ = 121.5/27 = 4.5

So, The formula for this sequence will be $4.5 * 3^{n-1}$

8 0

2 years ago

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Consider the function represented by the equation y-6x-9=0. Which answer shows the equation written in function notation with x

Marta_Voda [28]

Answer:

A. f(x) = 6x + 9

Step-by-step explanation:

The given equation is:

y - 6x - 9 = 0

We have to write this equation in function notation with x as the independent variable. This means that y will be replaced by f(x) and all other terms will be carried to the other side of the equation to get the desired function notation.

y - 6x - 9 = 0

y = 6x + 9

f(x) = 6x + 9

Therefore, option A gives the correct answer.

5 0

2 years ago

Read 2 more answers