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
Anestetic [448]
3 years ago
15

Four times one number minus three times another number is 12. Two times the first number added to three times to the second numb

er is 6. Find the numbers. Write equations and solve the system using elimination
Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
4 0

Answer:

Step-by-step explanation:

x = first number, y = second number

4x - 3y = 12

2x + 3y = 6

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

6x = 18

x = 18/6

x = 3

4x - 3y = 12

4(3) - 3y = 12

12 - 3y = 12

-3y = 12 - 12

-3y = 0

y = 0

solution : (3,0)

You might be interested in
NEED ANSWERED ASAP please find the volume of the cone and cylinder. ​
Mkey [24]
Cone volume= 285 ( the radius would be 5.5)
Cylinder volume =95 same radius as well
4 0
3 years ago
Read 2 more answers
Evaluate the expression shown below and write your answer as a fraction in simplest form. 1 - 5 ———————- 1 1 — + —- 12 8
koban [17]

Answer:

9/14

Step-by-step explanation:

The question is not clear enough. Here is a similar question as shown in the attachment

Given the expression

-3/2 ÷ -7/3

= -3/2 ×-3/7

= (-3*-3)/(2*7)

= 9/14

Hence the equivalent result expressed as a fraction is 9/14

4 0
3 years ago
Someone help please❤️ & Thankyou!!
S_A_V [24]

Answers:

  • 300 = 12i+36s
  • i = 10
  • Yes it's reasonable
  • i = -11

Refer to the diagram below.

The explanation for each part is below as well.

========================================================

Part 1

i = number of individual nail polish bottles

s = number of sets of 4

12i = money earned from just selling the individual bottles only

36s = money earned from just selling the sets of 4 only

12i+36s = total money earned = 300

12i+36s = 300 is the equation to set up

This is the same as 300 = 12i+36s  because A = B is the same as B = A.

========================================================

Part 2

Plug in s = 5 to represent she sold 5 sets. Let's solve for i

12i+36s = 300

12i+36(5) = 300

12i+180 = 300

12i = 300-180

12i = 120

i = 120/12

i = 10

If she wants to sell $300 worth of product overall, and she already sold 5 sets so far, then she needs to sell 10 individual bottles to reach this monthly goal.

========================================================

Part 3

Yes it's reasonable to reach this goal. This is because the value of i (from part 2) was some positive whole number.

========================================================

Part 4

We'll repeat part 2 but with s = 12

12i+36s = 300

12i+36(12) = 300

12i+432 = 300

12i = 300-432

12i = -132

i = -132/12

i = -11

As the instructions state, we get a negative value. This is not reasonable because we can't sell a negative number of items. A negative number of items in general doesn't make sense.

The instructions further state that $432 was already made and that she exceeded her goal. Meaning that she doesn't have to worry about selling the individual bottles if selling the sets has her reach something over $300.

6 0
3 years ago
X - 6 <br> ———- = 5<br> 3<br><br> A.) x = 9<br> B.) x = 14<br> C.) x = 21<br> D.) x = 24
Papessa [141]
The answer is c) x =21
4 0
2 years ago
Which number sentence is true?A.-1.5 + (-0.5) = 2.0B.2.5 + (-1.5) = 1.0C.-1.5 + (-0.5) = -1.0D.-2.5 + 3.5 = -1.0
Anni [7]

Answer: B

Step-by-step explanation: the other ones are wrong.

4 0
3 years ago
Other questions:
  • Plz plz plz help plz plz
    7·1 answer
  • A train travels 220 miles in 4 hours. What is the train's speed in feet per minute?
    11·2 answers
  • Given: rectangle ABCD is similar to rectangle ZBXY. If BC = 10, BX = 6, XY = 4, then CD =
    13·2 answers
  • I have some geometric sequence questions, will give 5 points for every answer and will give Brainliest!
    7·1 answer
  • 5d = 30 i cant find the answer
    15·2 answers
  • 7th grade math help me pleasee :))
    15·1 answer
  • Can some one help me and solve this problems​
    15·1 answer
  • 19 = -23+ 6(2 - p)<br> Can someone please help me?!?!
    5·2 answers
  • P(x)=2x^2+4x+2<br>please say the answer fast I have an activity​
    11·1 answer
  • Who knows stuff about Algebra l
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!