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
andreyandreev [35.5K]
2 years ago
12

A coffee Merchant combines coffee costing $6 per pound with coffee costing $3.50 per pound how many pounds of each should be use

d to make a 25 lb of a blend costing $5.25 per pound
Mathematics
1 answer:
levacccp [35]2 years ago
3 0
\bf \begin{array}{lccclll}
&\stackrel{lb}{amount}&\stackrel{lb}{price}&\stackrel{total}{price}\\
&------&------&------\\
\textit{6 per lb coffee}&x&6&6x\\
\textit{3.5 per lb coffee}&y&3.5&3.5y\\
-------&------&------&------\\
mixture&25&5.25&131.25
\end{array}

same as before, we add the 1st and 3rd columns, since the mixture is just the sum of the elements above it.

\bf \begin{cases}
x+y=25\implies \boxed{y}=25-x\\
6x+3.5y=131.25\\
----------\\
6x+3.5\left( \boxed{25-x} \right)=131.25
\end{cases}
\\\\\\
6x+87.5-3.5x=131.25\implies 2.5x=131.25-87.5
\\\\\\
2.5x=43.75\implies x=\cfrac{43.75}{2.5}\implies x=17.5

how many lbs will it be of the 3.50 per lb coffee?  well, y = 25 -x.
You might be interested in
If you run 4 1/2 miles in three quarter of an hour, how many miles would you run in two thirds
olga_2 [115]

Answer:4

Step-by-step explanation: each quarter of an hour is 1.5 miles they both can go into 12 so if you multiply 2*4 and 3*4 you get 8/12 and if you multiply 3*3 and 4*3 you get 9/12 then you subtract 9/12 by 8/12 to get so 1/12=1/2 miles so you would subtract 4 1/2 by 1/2 to get 4

7 0
2 years ago
Beth planted 35 flower seeds three out of the five seeds sprouted. How many seeds sprouted in all
ioda
21. 5x7 is 35. 3x7 is 21
8 0
3 years ago
Nancy leaves the school and drives toward her town at 27 mph. greg leaves the same school 2 hours later and drives the same rout
Paul [167]
Nancy's rate=27 mph
Greg's rate=45 mph
t=Greg's time
t+2=Nancy's time
Since they both traveled same distance then:
27(t+2)=45t
27t+54=45t
18t=54
t=3 hours
Greg will pass Nancy after 3 hours
6 0
3 years ago
Calculate the trade discount for 3030 boxes of computer paper if the unit price is ​$14.9314.93 and a single trade discount rate
zhannawk [14.2K]

Answer:

Total trade discount on 30 boxes = $201.555

Step-by-step explanation:

1 box = $14.93

And a trade discount of 45% is allowed on a single box,

Therefore, the discount on one $14.93 box will be

45% × $14.93 = $6.7185

So, if there are now 30 boxes, the trade discount on all 30 boxes will be

30 × (trade discount on one box) = 30 × ($6.7185) = $201.555

Hope this helps!

5 0
2 years ago
Kim read 4/5 of her book and Grace read 6/10 of her book. who read more of her book, kim or Grace?
love history [14]
Kim did. Make the fractions into decimals(4 divided by 5, 6 divided by 10) Kim got 0.8, while Grace got 0.6.
3 0
3 years ago
Other questions:
  • A store in Greenwood purchased a skateboard at a cost of $37.10 and marked it up 100%. Later on, Ellen bought the skateboard. If
    13·1 answer
  • Graph the function f(x)=6x^5+8x^4-7x^3-5x^2+10 by making a table of values.
    10·1 answer
  • The graph below shows a line of best fit for data collected on the number of dogs visiting a dog park since it first opened.
    6·1 answer
  • BRAINLIEST IF ANSWER PLS ASAP
    8·1 answer
  • Distance between points (−4, 3) and (−2, −1)?
    15·1 answer
  • What is 65% of two hundred
    11·2 answers
  • Larry's evening is spent reading and watching TV. He can spend no more than 4 hours total on these activities, and he wants to s
    11·2 answers
  • Brody can fill a bowl with candy in 3 minutes. While Brody fills the bowl, Hudson takes the candy out of the bowl. With Hudson t
    15·1 answer
  • Use the scale drawing and the scale factor to enlarge a square that has a side length of 12 in. Scale factor= 3 in:2m.
    12·1 answer
  • Solve For X. 5 - 2x^2 = -15
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!