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
quester [9]
3 years ago
11

How many pounds of candy worth 70 cents a pound must be mixed with 30 pounds of candy worth 90 cents a pound to produce a mixtur

e which can be sold for 85 cents per pound?
A) 5 pounds
B) 10 pounds
C) 15 pounds
D) 12 pounds
Mathematics
1 answer:
Svet_ta [14]3 years ago
5 0
<h3>Answer:</h3>

B) 10 pounds

<h3>Explanation:</h3>

Let x represent the amount of 70¢ candy to be added. The value of the mixture can be written as ...

... 90×30 + 70x = 85×(30+x) . . . . . where 30+x is the total weight of the mix

... 2700 +70x = 2550 +85x

... 150 = 15x . . . . . . add -70x-2550

... 10 = x . . . . . . . . . divide by the coefficient of x

10 pounds of candy at 70¢/lb must be added.

You might be interested in
What is the area, in square feet, of the trapezoid below?
PtichkaEL [24]

Answer:  " 94. 6  ft² ".
_____________________

<u>Step-by-step explanation</u>:

The formula for the area of a trapezoid:
______________________
A = (1/2) * (b1 + b2) * (perpendicular height, "h" ) ;

      in which:
______________________
 "A = area (in units of ft²) "

 "b1 = length of (base one) = 7.7 ft (from diagram) ;  

 "b2 = length of (base two—the other base) = 14.3 ft. ;
 "h = height (perpendicular) = 8.6 ft.
_______________________

To solve for the Area, "A" ; we plug in the known values:
_______________________
A = (1/2) * (b1 + b2) * (perpendicular height, "h" );

   =  (1/2) * (7.7 ft + 14.3 ft) * (8.6 ft) ;

  = (1/2) * (22 ft.) * (8.6 ft) ;

  = (11 ft.) * (8.6 ft.) ;

   = (11) * (8.6) * (ft.) * (ft.) ;

   = (11) * (8.6) * ft² ;

A  =   " 94. 6  ft² ".

_______________________
Hope this is helpful to you!
  Best wishes!
________________________

8 0
2 years ago
Solve the following system of equations:
antoniya [11.8K]
I think the answer is B
8 0
3 years ago
Read 2 more answers
3. What is the 9th term in the following sequence? 11, 17, 23, 29, . . . (1 point) 47 53 59 65
KatRina [158]
Since the common difference is 6, we can assume that the sequence is arithmetic, with rule
T(n)=6n+5  where T(1)=11
T(9)=6(9)+5=59
5 0
3 years ago
+ 2x + 12y + 4<br><br> What are the coefficients of this expression?
Tanzania [10]

Answer:

The coefficients are: 2, 12, 4.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Can anyone help me on this question?
slavikrds [6]
Cant view the picture
7 0
2 years ago
Read 2 more answers
Other questions:
  • Jamie needs to determine the distance across a river. She selects a rock, R, on the opposite river bank. She finds a tree, T, on
    6·1 answer
  • Can anyone help with 3 or 4 please
    6·1 answer
  • A universal set contains only sets A and B. If A∩B = Ø and A and B are not the empty set, then all of the following are true exc
    13·2 answers
  • Given:
    6·2 answers
  • Write an equation that relates 5 gallons of water to 12 teaspoons of salt
    13·1 answer
  • A school club sold 300 shirts. 31% were sold to fifth graders, 52% were sold to sixth graders, and the rest were sold to teacher
    5·2 answers
  • The sum of 4 consecutive integers is 326. what is the second number in the sequence
    10·2 answers
  • A store sells paint sets. Each paint set costs the same amount. During a sale, the store reduces the price of each paint set by
    9·1 answer
  • Need assistance with this one please
    5·2 answers
  • Which set of values could be the side lengths of a 30-60-90 triangle?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!