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
Allushta [10]
3 years ago
5

Can someone help me solve this?

Mathematics
1 answer:
Dovator [93]3 years ago
8 0

Answer:

5 felt pads.

7 cards.

Step-by-step explanation:

Remark

  • The total number of items is 12
  • So let the felt sheets be x
  • Let the cards = y

Equations and Solution

x + y = 12

Now the price is 7.75 that she has to pay for the 12 items. She wants to come back with 0 dollars.

0.5x + 0.75y = 7.75             Multiply this equation by 2

x + 1.5y = 15.50                    write the first equation underneath and subtract.

<u>x +    y =   12</u>

      .5y =  3                          Divide by 0.5

y = 3/0.5

y = 7

So she can get 7 cards.

x + y = 12

x + 7 = 12

x = 12 - 7

x = 5

So she can buy 5 felt pads.

You might be interested in
Tomas Scheckter won the Bombardier Learjet at Texas Motor Speedway by edging the
GenaCL600 [577]

Answer:

5.34 x 10^-2

Step-by-step explanation:

8 0
3 years ago
Suppose y = 2x + 1 , where x and y are functions of t. (a) if dx/dt = 3, find dy/dt when x = 4. dy dt = (b) if dy/dt = 2, find d
qwelly [4]

Answer:

Step-by-step explanation:

If y = 2x + 1, then dy/dt = 2(dx/dt).

If y = 2x + 1, then y = 2(40) + 1 when 40 is substituted for x.  y = 81.

(a) if dx/dt = 3, find dy/dt when x = 4:

       Replacing dx/dt with 3 in dy/dt = 2(dx/dt) yields dy/dt = 2(3) = 6.

(b) if dy/dt = 2, find dx/dt when x = 40:

        Replacing dy/dt with 2 in dy/dt = 2(dx/dt) results in 2 = 2(dx/dt), so dx/dt must be 1.

3 0
3 years ago
The population of North Carolina is twice as large as the population of South Carolina
MissTica
Y=2x
..........................................
5 0
3 years ago
A 5 hour and 25-minute flight begins at 9:40 at what time will it end
motikmotik
Your answer is 3:05.

 You must add on to 9:40. So what I did was 9 + 5 = 14.
14 - 12 = 2.
So far it's 2:40.
25 minutes + 40. = 65.
Well there are 60 minutes in an hours. So 65 would be equal to 1H and 5min.
Now take that 1 hour. Add it to 2.
3 hours. And take your 5 minutes.
There! 3:05
7 0
3 years ago
Read 2 more answers
Last weekend, Charlie raked leaves in his front yard l. He noticed that 7/3 kilograms of leaves filled 4/9 of a bag. What is the
Archy [21]
7kg:4/9 bag
?kg:1 bag

7÷4/9 or 7×9/4=63/4 or 15.75. As a result, the unit rate is 15.75 kg of leaves per bag. Hope it help!
3 0
3 years ago
Other questions:
  • What is the probability of rolling back to back evens?
    5·1 answer
  • If the equation of a perpendicular bisector of a triangle is y = 2x + 7, what is the slope of the side that it is bisecting? Exp
    8·1 answer
  • Emmanuel collected 49 Leaves last week he collected the same number of leaves each day how many leaves did he collect on Monday
    13·2 answers
  • Please answer need now
    5·1 answer
  • Earth's oceans have an average depth of 3800 m, a total area of 3.63 × 108 km2, and an average concentration of dissolved gold o
    14·1 answer
  • Bill got a bank statement and found that his statement balance did not agree with his checkbook
    10·1 answer
  • Which of the following expressions is equivalent to the one shown below? (4^3)^5
    14·1 answer
  • A study of the amount of time it takes a mechanic to rebuild the transmission for a 2005 Chevrolet Cavalier shows that the mean
    7·1 answer
  • Evaluate the following expression for x=2 and y=1<br><br> 3x+8y+10
    9·1 answer
  • Garrett runs a catering service for large
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!