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
trapecia [35]
3 years ago
8

Help please i really really really need it.....

Mathematics
1 answer:
ruslelena [56]3 years ago
3 0

A)

s = sweater

j = jeans

Equations:

4s + 2j = 140

2s + 3j = 150

B)

4s + 2j = 140

2s + 3j = 150

Multiply (-2) to the second equation

-2 (2s + 3j = 150)

-4s - 6j = -300

Now you have the equations:

4s + 2j = 140

-4s - 6j = -300

-----------------------------add

-4j = -160

  j = 40

4s + 2(40) = 140

4s + 80 = 140

4s = 60

 s = 15

The cost for a sweater is $15 and the cost for a jean is $40

We used the elimination method to solve the system of equations.

C)

Each pair of jean, she will buy 3 sweaters so total = 40 + 3(15) = $85

Total cost for 1 pair of jeans and 3 sweaters = $85

If she has $225 the

$225 / $85 = 2.64

2 jeans = 2 x 40 = $80

6 sweaters = 6 x $15 = $90

So She can only buy 2 jeans and 6 sweaters

You might be interested in
I need help plz! ( Thank u )
devlian [24]

y/3 = h

Multiply both sides by 3:

y = 3h


4 0
3 years ago
Question: What is the number of the parking space covered by the car?
sukhopar [10]

Answer:

93

Step-by-step explanation:

7 0
2 years ago
How can I anwser this ?? help me
lana [24]
Exactly like the previous question you posted.

-3x² - 9x = 0

Divide each side of the equation by -3 :

x² + 3x = 0

Factor the left side:

x (x + 3) = 0

This is true if x=0 or if x=-3 .
8 0
3 years ago
Read 2 more answers
A building casts a shadow 10 ft long. A statue in front of the building casts a shadow 2.5 ft long. If the statue is 15 ft tall,
Gelneren [198K]
3.75

10 ft - 2.5
Half of 2.5 is 1.25.

2.5 + 1.25 = 3.75


4 0
3 years ago
Any one pls helpp! i dont understand this???
ozzi

Answer:

X= 10, 20, 30, 40, 50, 60

Step-by-step explanation:thats

thats all i know

3 0
2 years ago
Read 2 more answers
Other questions:
  • Convert the following equation to slope-intercept form to graph: 7x – y = –3
    6·1 answer
  • Tyler attempts 240 free throws in 60 minutes. How many free throws did he attempt per minute?
    9·1 answer
  • A hovercraft takes off from a platform. Its height (in meters), 2 seconds after takeoff, is modeled by: h(x) = -3(x - 3)2 + 108
    8·2 answers
  • 3
    14·1 answer
  • What is the first step in describing what figure results when a given plane intersects a given three dimensional figure?
    9·1 answer
  • What is the distance between -34 and -11 on a number line?
    15·2 answers
  • The density of an object with mass m and volume V is .
    9·1 answer
  • What triangle equals 135 degrees
    11·1 answer
  • Which expression is the result of subtracting (Z2-3i)<br> from (Z1 + 2)?<br> A<br> B<br> C<br> D
    13·2 answers
  • I will give 30 points if u help now
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!