answer.
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
NikAS [45]
2 years ago
4

Math help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Mila [183]2 years ago
8 0
1)
I:3x-y=4
II:2x+y=11

add both equations together:
3x-y+2x+y=4+11
3x+2x=15
5x=15
x=3

insert x=3 into I:
3*3-y=4
9-y=4
5=y

(3,5)

2)
I:4x-14y=6
II:-2x+7y=-3

multiply II*(-2):
4x-14y=6
-> II*(-2)=I
-> infinite solutions=last option

3)
I: 7l+4s=150
II: s+l=30

it's the first option
You might be interested in
The pizza shop offers a 15 percent discount for veterans and senior citizens. If the price of a pizza is $12, how would you find
Naya [18.7K]
All you would do is times 12 by .15 or 15% you get 1.8 then all you do is 12 minus 1.8 you get $10.20 that is the price of a discounted pizza 

I hope this helps


8 0
2 years ago
Read 3 more answers
Determine if 0.515115111511115111115... is rational or irrational and give
GREYUIT [131]
It’s rational, for a number to be rational you have to be able to write it as a fraction and you can write 0.515115111511115111115... as a fraction.
7 0
2 years ago
A square and a rhombus are shown below. Which attribute is true of one of the shapes but not of both
Slav-nsk [51]
The rhombus has 2 obtuse angles, and 2 acute angles. the square has 4 right angles.
4 0
2 years ago
Each of three colored cups covers one of three objects. 1) The red cup is somewhere to the left of the white cup. 2) The coin is
yulyashka [42]

Answer:

Shell is under Red color cup

Step-by-step explanation:

We have 3 cups and 3 objects which they cover under them.

Taking into consideration (4) and (2) as they both describe the position related to bean

(4) Gray cup  →Bean (right)     (2) coin ← bean (left)  

that means coin can either under Gray cup or left to gray cup.

Now

(1) Red ← White (left)  (3) Shell → Gray  (right)

This means if we consider coin to be left of gray cup then we can't place shell to the left of gray cup as required in (3)

so coin will be under gray cup

on forming the Color of cups and the coin below them

C1             C2         C3

Red       Gray      White

 __           __          __

Shell        coin        Bean

So Shell is under Red color cup

6 0
2 years ago
Which triangle defined by three points on the coordinate plane is congruent with the triangle illustrated, and why?
HACTEHA [7]
The triangle defined by three points on the coordinate plane is congruent with the triangle illustrated:

C) (4,2); (8,2); (4,8) because the corresponding pairs of sides and corresponding pairs of angles are congruent. 

If we plot these points we can observe that they are congruent, we should also solve for the distance of each point between each other to conclude their congruency. 
4 0
2 years ago
Read 2 more answers
Other questions:
  • A pack of paper costs $3.75 including tax. Mr. Cooper wants to purchase packs of paper for his class and has a $20 budget. Write
    12·1 answer
  • The sides of a square are five to the power of two fifths inches long. What is the area of the square?
    7·1 answer
  • The volume of water in a resevoir decreases 21,000 cubic yards over a 3-month period. What is the average change in volume per m
    7·2 answers
  • Point F is on circle C.
    14·2 answers
  • Tyrone’s hourly wage is $18 and his net pay is 72% of his earnings. Tyrone spends about $1,800 on his monthly expenses. If Tyron
    15·2 answers
  • On one afternoon in a shoe warehouse, three large shipments of shoes arrived. The weights of the shipments were 1 ton 115 pounds
    15·1 answer
  • Find the simple interest on $6000 from 16 May 2010 to 9 October 2010 at 10 percent per annum​
    13·1 answer
  • After simplifying, which expressions are equivalent? Select three options.
    15·2 answers
  • Betty has a checking account and a non-interest bearing savings account. The function C(x), shown below, represents her checking
    12·1 answer
  • Evaluate the expression x²-3y +12 for x= -2 and y = 5​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!