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
Snezhnost [94]
3 years ago
13

Is this correct? If it isn’t what’s the correct answer?

Mathematics
2 answers:
alexdok [17]3 years ago
5 0

Answer:

No, it is 6.60

Step-by-step explanation:

We need to know the cost of 1 pound, so we have to do 3.60 divided by 3, to get the cost of 1 pound, which is 1.20

We times 1.20 by the amount of pounds we need, (5.5,) and get 6.60.

If it was times just 5 pounds, than yes, it would be correct, but we need to look out for decimals too.

Ipatiy [6.2K]3 years ago
3 0

Answer:

d. $6.60

Step-by-step explanation:

3 cost 3.60, then 5.5 would cost ?

So we have to find what multiplied with 3 would equal 5.5, so:

5.5/3, we can't simplify this fraction so we'll just use it to multiply 3.60

3.60 × 5.5/3 = 19.8/3 = 6.6

You might be interested in
Pleasantburg has a population growth model of P(t)=at2+bt+P0 where P0 is the initial population. Suppose that the future populat
yulyashka [42]

Answer:

The population will reach 34,200 in February of 2146.

Step-by-step explanation:

Population in t years after 2012 is given by:

P(t) = 0.8t^{2} + 6t + 19000

In what month and year will the population reach 34,200?

We have to find t for which P(t) = 34200. So

P(t) = 0.8t^{2} + 6t + 19000

0.8t^{2} + 6t + 19000 = 34200

0.8t^{2} + 6t - 15200 = 0

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}

x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}

\bigtriangleup = b^{2} - 4ac

In this question:

0.8t^{2} + 6t - 15200 = 0

So a = 0.8, b = 6, c = -15200

Then

\bigtriangleup = 6^{2} - 4*0.8*(-15100) = 48356

t_{1} = \frac{-6 + \sqrt{48356}}{2*0.8} = 134.14

t_{2} = \frac{-6 - \sqrt{48356}}{2*0.8} = -141.64

We only take the positive value.

134 years after 2012.

.14 of an year is 0.14*365 = 51.1. The 51st day of a year happens in February.

So the population will reach 34,200 in February of 2146.

6 0
3 years ago
Y = 2x<br> 3x-y=15<br><br> Solve By Substitution
Minchanka [31]
The answer is X=15...
6 0
3 years ago
Read 2 more answers
PLS HELP MEEEEEEEEE pls i make brain
Degger [83]

Answer:

1) 0.75

2) y = \frac{3}{4}x - 3

3) (4, 0); (0, -3)

Step-by-step explanation:

Convert to slope-intercept form (y = mx + b) by solving:

y = \frac{3}{4}x - 3

m is the slope, so \frac{3}{4} or you can write as 0.75.

To find the x and y intercepts, set the y value to zero and solve (x-intercept), and b is the y-intercept.

3 0
3 years ago
Read 2 more answers
How to answer this problem
Mumz [18]

Answer:

5 Degrees

Step-by-step explanation:

In order to find the median, you must put the temperatures in ascending order. The median is the number in the middle.

This week

65 71 73 73 73 74 75

Last Week

51 62 66 68 72 72 85

The median of This week is 73 while the median last week is 68.

73-68=5 degrees

3 0
4 years ago
Read 2 more answers
What is an irrational number equal to 2 OR 10 that is NOT an integer? I know what irrational numbers are and all that but I want
worty [1.4K]
100pi/10pi this is irrational but reduces to 10, a rational number
6 0
3 years ago
Other questions:
  • Four students are running for class president: liz, sam, sue, and tom. the probabilities of sam, sue, and tom winning are 7⁄25 ,
    13·1 answer
  • ((x+2)+1)^2 hasilnya?
    14·1 answer
  • Men and women (ages 22–40) were surveyed to choose a favorite free-time activity: playing sports, dancing, or watching movies/TV
    9·2 answers
  • 14 thanks you so much
    9·2 answers
  • Geometry Homework Help Pleease~~
    12·1 answer
  • If x is a prime number, what is the value of x? (1) 2 x + 2 is the cube of a positive integer. (2) The average of any x consecut
    6·1 answer
  • Not sure how to solve this
    10·1 answer
  • I need help with this plz.
    7·1 answer
  • On Monday, a local hamburger shop sold a combined total of 408 hamburgers and cheeseburgers. The number of cheeseburgers sold wa
    11·2 answers
  • the lenght of a rectangle is 2.4 meters long and the diagonal is 4 what is the width of the rectangle
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!