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
tatiyna
3 years ago
10

During the past year, Mrs. Singh purchased 37 books at a wholesale club store. She purchased softcover books for $5.50 each and

hardcover books for $13.50 each. The total cost of the books was $355.50 . How many of each type of book did she purchase?
Mathematics
1 answer:
ozzi3 years ago
5 0

Answer:

x+y=37-------(1)

5.5x+13.5y=355.5-----(2)

Put x=37-y in eqn 2

5.5(37-y)+13.5y=355.5

203.5-5.5y+13.5y=355.5

8y=152

y=19

x=18

Step-by-step explanation:

You might be interested in
Need answer has soon has possible no need to explain plz
kirill [66]

Answer:

f=9

9 squared = 81

81-81=0

Step-by-step explanation:

7 0
3 years ago
Enter your answer and show all the steps you use to solve this problem in the space provided. What is the volume of the rectangu
Dovator [93]

Answer: 416 mm

Step-by-step explanation: The equation for the volume of a rectangular prism is length*width*height. The width (5) times the height (8) is 40 (5*8=40). The volume is that (40) times the length(10.4) which is 416 (40*10.4=416).

3 0
3 years ago
Mr. Seidel filled up his 14-gallon gas tank for $44.26. What was the price per gallon of gas - to the nearest hundredth?
Nataly_w [17]

Answer:

$3.616

Step-by-step explanation:

4 0
3 years ago
(<br> 3.9<br> ×<br> 10<br> −<br> 5<br> )<br> (<br> 7<br> ×<br> 10<br> −<br> 3<br> )
tangare [24]

Answer:

2278

Step-by-step explanation:

(3.9×10−5)(7×10−3)

= (39 - 5)(7 x 10 -3)

= (39 - 5)(70-3)

= 34(70-3)

= 34 x 67

= 2278

4 0
3 years ago
Angles C and D are complementary. The measure of angle D is 25 degrees greater than the measure of angle C. What is the measure
Volgvan
90-25 = 65
65/2 = 32.5

32.5+25 = 57.5

C is 32.5 degree.
D is 57.5 degree.
6 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE PLEASE PLEASE HELP!!
    5·2 answers
  • Use inequality symbol to compare -3 + 7--------10 - 2
    11·2 answers
  • Evaluate x+2.7 for x=-1.5
    7·1 answer
  • Simplify each polynomial. 6g+8k-9g+2k<br> -4x+6x²+5x<br> a²+5a-3a²<br> 3x²+8x+7x
    8·1 answer
  • Use the distributive property to multiply, combine like terms &amp; find the equations
    9·1 answer
  • Which is the best way to solve the equation x2 = K?
    9·1 answer
  • Please i need help !!!!!
    7·1 answer
  • Rita is making chili. The recipe calls for 4 3/4
    12·2 answers
  • PLZZ HELP I HAVE A TEST 20 POINTS<br> 3( -2)(+3)(+4)
    11·2 answers
  • Which describes a pair of angles
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!