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
Sever21 [200]
3 years ago
15

3s + 9c = $75 8s + 5c = $67

Mathematics
2 answers:
otez555 [7]3 years ago
6 0

Answer:

s=4, c=7. (4, 7).

Step-by-step explanation:

3s+9c=75

8s+5c=67

----------------

simplify 3s+9c=75 into s+3c=25,

-------------------

s+3c=25

8s+5c=67

----------------

s=25-3c

8(25-3c)+5c=67

200-24c+5c=67

200-19c=67

19c=200-67

19c=133

c=133/19

c=7

s+3(7)=25

s+21=25

s=25-21

s=4

cestrela7 [59]3 years ago
3 0

Answer:

s=4& c=7

Step-by-step explanation:

3(4)+9(7)=$75

8(4)+5(7)=$67

You might be interested in
Which of the following statements represents a difference between a sample survey and an observational study? A) Presence of pop
alexira [117]

Answer:

c seems most likely from the given answers

Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
How do I do this?? Help plse!
eimsori [14]
D, it is the correct answer
6 0
3 years ago
HELP MEH! I WILL MARK THE BEST ANSWER BRAINLIEST!
kherson [118]

Answer:

Step-by-step explanation:

32.12 meters below sea level. The diver ascended to the surface at a rate of 8.8 m/min. So the diver ascended 3.65 meters a minute.

a) Use d=rt. D=distance, t= minutes, r=rate

d=8.8t

b) The distance will never be a negative number because you can't have a negative distance to something.

c) 3.65 minutes for the diver to reach the surface.

5 0
3 years ago
PLEASE HELP I WILL GIVE BRAINLIEST!!!!! I already solved for x please solve for y and z! Trolls are getting reported and banned
hoa [83]
Not sure if your the same person but I had already done the work for this problem....

4 0
2 years ago
KX equals X +4 find K7
Andre45 [30]
KX = x+4 so solve for k. 
Divide both sides of the equation by x and you get K=4. 
Plug it in, and you get (4)(7)=28
Your answer is 28.
5 0
3 years ago
Other questions:
  • Consider the following system of equations. {-10x^2 - 10y^2 = -300 and 5x^2 + 5y^2 = 150 Which statement describes why the syste
    12·2 answers
  • Paul's average for 3 tests was 85. The average of his scores for the first 2 tests was also 85. What was his score for the third
    14·1 answer
  • Please Help...........................................................
    6·2 answers
  • Jordan places two boards end to end to make one shelf. The first board is 47-100 meter long.The second board is 5-10 meter long.
    11·2 answers
  • SOMEONE PLS HELP PLS PLS PLS PLS I DONT UNDERSTAND ANYTHING AND I WANT TO SCREAM THIS IS SO DIFFICULT ILL GIVE BRAINLIEST AND AL
    15·2 answers
  • On a certain sight-seeing tour, the ratio of the number of women to the number of children was 5 to 2. What was the number of me
    9·1 answer
  • What is the equation of the line that passes through point (4, 12) and has a intercept of -2​
    7·1 answer
  • Which graph represents y=cos (2x-pi)+5 ?
    10·1 answer
  • The sum of outer angles of a polygon is twice the sum of inner angles. How many sides does it have?
    13·2 answers
  • What is 3(c−4)=​___c−​___ its really hard for me right now
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!