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
Trava [24]
2 years ago
10

PLEASE PLEASE HELP!!!!

Mathematics
1 answer:
Gennadij [26K]2 years ago
4 0

Answer:

3

Step-by-step explanation:

You might be interested in
Max was on vacation twice as long is Jared and half as long as Wesley. The boys were on vacation a total of three weeks. How man
nasty-shy [4]
To begin with, the question is asking for the answer in days, so let's change 3 weeks to days. There are 7 days in 1 week; 3 weeks times 7 days = 21 days.
21 total days of vacation.

Max + Jared + Wesley = 21 days
(Let's use the first letter of their name to represent their vacation time)

M + J + W = 21 [This is the equation we'll be coming back to]

Now, we can use the clues given in the question to have an equation for each variable/boy. 

Max was on vacation twice as long as Jared. We can interpret this as  M= 2J Max was on vacation only half as long as Wesley. We can interpret this as M = (1/2)W.

So far we have these three equations: M + J + W = 21M = 2J M = (1/2)W

To have an equation for each individual boy, we must rearrange the last two equations in the list.

First, M = 2J.
Divide both sides by 2
M/2 = 2J/2
(1/2)M = J

Second, <span>M = (1/2)W
Multiply both sides by 2
2M = W

New equations:
</span><span>M + J + W = 21 [From the old list]
</span>J = (1/2)W
W = 2M

Now we can substitute the last two equations into the first one. 
M + J + W = 21
M + (1/2)W + 2M = 21
[Combine Like Terms]
<span>(7/2)M = 21 
</span>
Then, solve for M (Max's vacation days):
Multiply both sides by 2/7
(\frac{2}{7})* (\frac{7}{2}m)= (\frac{2}{7})*(21)
M = 6

Now we know Max was on vacation for 6 days.

If Max was on vacation twice as long as Jared, that means Jared was on vacation HALF as long as Max.

So...
<span>J = (1/2)M 
J = (1/2) * 6
J = 3
Jared was on vacation for 3 days 
</span>
Wesley was on vacation twice as long as Max so...  W = 2M 
W= 2*6
W = 12
Wesley was on vacation for 12 days. 

Let's double check our answer:
M + J + W = 21 days<span>6 + 3 + 12 = 21   
The numbers work out so the math is correct. Hope this helps and makes sense!</span>
6 0
3 years ago
Mrs. Wilkinson can buy a 20-ounce box of cereal for $3.60 or a 28-ounce box of cereal for $4.20. Which is the better buy?
Vsevolod [243]
3.60 / 20 = 0.18

4.20 / 28 = 0.15


The 28-ounce box has better value, as cost-per-ounce is lower.
4 0
3 years ago
Help... C or E??????????
muminat

Answer:

E is correct

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What is the value of the digit 5 in the number 60.35
Kitty [74]

Answer:

hundreaths

Step-by-step explanation:

if you count on the right side of the decimal each time you count it goes tenths, hundreaths, thousandths, etc. the 5 is 2 places on the right of the decimal so therefore it is hundreaths

8 0
3 years ago
Read 2 more answers
Find the average rate of change for the function over the given interval.
jekas [21]

Answer:

The average rate of change for the function over the given integral

A(x) = \frac{e^{-2} -1}{2}

Step-by-step explanation:

Explanation

<u>Average rate of a functio</u>n:-

<u>We can define the average rate of change of a function from a to b</u>

<u></u>

A(x) = \frac{f(b)-f(a)}{b-a}

Given function f(x) = eˣ

Given interval      x = a = -2   and y = b = 0

f(a) = f(-2) = e⁻²

f(b) = f(0) = e⁰

A(x) = \frac{e^{-2} -1}{0-(-2)}

The average rate of change for the function over the given integral



6 0
2 years ago
Other questions:
  • Determine the slope of the graph of x^4=ln(xy) at the point (1,e)
    7·2 answers
  • Every evening Jenna empties her pockets and puts her change in a jar. At the end of the week she counts her money. One week she
    14·2 answers
  • There were two containers of oil. There was twice as much oil in the second container as in the first one. After using 13 liters
    10·1 answer
  • Gabe rents a piano for $49 per month. He earns $15 per hour giving piano lessons to students. How many hours of lessons per mont
    15·2 answers
  • HELP HELP HELP Certain members of the Italian Parliament make 180,000 euros a year. If 1 euro equals 1.36 U.S. dollars, how much
    6·1 answer
  • Order the following temperatures from coldest to hottest <br> 42,-10,20.67,-14
    15·1 answer
  • The Sum of two numbers is six what number is 15 less than two times the second number what are the numbers
    8·1 answer
  • 10 millimeters 30 centimeters what is the difference in lenght of this two insects in millimeters
    9·1 answer
  • Need desperate help thanks
    11·1 answer
  • Pa answer po thank you <br><br><br><br>​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!