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
Can somebody please help me with this pleaseee
Semmy [17]

Answer: -2, 2

Step-by-step explanation:

0 = 5x^2 -20

0 = 5(x^2 -4)

0 = 5(x - 2)(x + 2)

0 = x - 2

2 = x

0 = x + 2

-2 = x

6 0
2 years ago
There are 9 classes of 25 students each 4 teachers in two times as many chaperones as teachers each bus hold a total of 45 peopl
Tanya [424]

Answer:

Least number of bus require for trip = 5 buses (Approx)

Step-by-step explanation:

Given:

Total number of classes = 9

Number of student in each class = 25

Number of teacher = 4

Number of chaperones = Double of teacher

Bus hold = 45 people

Find:

Least number of bus require for trip

Computation:

Total number of student = 9 × 25

Total number of student = 225

Number of chaperones = 4 × 2

Number of chaperones = 8

Total people = 225 + 8 + 4

Total people = 237

Least number of bus require for trip = Total people / Bus hold

Least number of bus require for trip = 237 / 45

Least number of bus require for trip = 5.266

Least number of bus require for trip = 5 buses (Approx)

6 0
3 years ago
Plz help question below
hammer [34]
Plan B. to me is he obvious answer.
4 0
3 years ago
Simplify. −38+(1+22)2
Hitman42 [59]
It would be 3 over 5
4 0
3 years ago
A group of friends were working on a student film. They spent all their budget on
Sophie [7]

Answer:

$820

Step-by-step explanation:

Total = Equipment + Props

T = 369 + 0.55T

0.45T = 369

<u>T = 820</u>

I hope this helps!

4 0
2 years ago
Other questions:
  • PLEASE HELP ASAP!!!!! WILL GIVE BRAINLEST TO CORRECT ANSWER
    10·2 answers
  • The midpoint of UV is (5, -10). The coordinates of one endpoint are U(3,6). Find the coordinates of endpoint V.
    15·1 answer
  • Cameron wants to measure a poster frame, but he only has a sheet of paper that is 8 1/2 by 11 inches. He lays the long edge of t
    12·2 answers
  • deeny chose two cards randomly from a deck. what is the probability of geeting a queen and a jack without replacement.
    14·1 answer
  • In what ways is the measurement 3.2 m like 3.20 m? How is<br>it different?​
    6·1 answer
  • Graphing Linear equation <br> 2) x=4y-3
    10·2 answers
  • Select the correct answer.<br> Which rate is equivalent to <br> 72/9?
    15·2 answers
  • summer break is almost around the corner. You and your family call an uber and need to know how many miles you can be driven. Ub
    15·1 answer
  • I need exercise #4 part b thanks :))
    12·2 answers
  • How many diagonals will a decaoctagon have?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!