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
natta225 [31]
3 years ago
14

use the substitution method to solve the system of equations . choose the correct ordered pairs x+y=5 y=7 A.(12,7) B.(-12,7) C.

(-2,7) D.(2,7)
Mathematics
1 answer:
Alex3 years ago
4 0

Answer:

<em>C. (-2, 7)</em>

Step-by-step explanation:

Put y = 7 to the equation x + y = 5:

x + 7 = 5          <em>subtract 7 from both sides</em>

x = -2


You might be interested in
big water canoeing company rents conoes for 75$ per hour. explain why the point (0,0) and (1, 75) are on the graph of the relati
Pepsi [2]
The X (1) axis represents the number of hours, and the Y (75) axis represents the number of dollars. When 0 hours are passed, 0 hours are payed (0,0) 1 hour 75 dollars are payed (1, 75) 2 hours 150 dollars is payed (2, 150) and so on
3 0
3 years ago
I need help with Spanish
Colt1911 [192]
Ana es diseñadora
nosotros somos muy delgados
El -es- astronauta

:))
8 0
3 years ago
A hybrid car averages 600 miles on a 12.6 gallon tank of gas.
gtnhenbr [62]

Hi There!

I think you have to divide 600 by 12.6.

That is all i know from your question.

6 0
3 years ago
Read 2 more answers
Georgia spent 150 minutes on her Maths homework last week.
vladimir2022 [97]

Answer:

last week = 150 minutes

this week = 162 minutes

changes = 162-150

= 12 minutes

percentage of changes = (12/150) × 100

= 8%

6 0
3 years ago
Neil wants to join three pieces of metal to form a right triangle. which of the following lengths could be used? please use step
vichka [17]

Answer: G. 12.5, 7.5, 10

Step-by-step explanation:

To determine the lengths of metal that could be used to form the tight angle triangle, we would apply Pythagoras theorem which is expressed as

Hypotenuse² = opposite side² + adjacent side²

The hypotenuse is the longest side while the opposite and adjacent sides are the shorter side. Therefore,

F.

8² = 4² + 4²

64 = 16 + 16 = 32

A right angle triangle cannot be formed because they are not equal.

G.

12.5² = 7.5² + 10²

156.25 = 56.25 + 100 = 156.25

A right angle triangle can be formed because they are equal.

H.

23² = 11² + 9²

529 = 121 + 81 = 202

A right angle triangle cannot be formed because they are not equal.

J.

96² = 12.5² + 6²

9216 = 156.25 + 36 = 192.25

A right angle triangle cannot be formed because they are not equal.

4 0
3 years ago
Other questions:
  • In in a shelter the number of kennel is proportional to the number of dogs that consistent proportionality in terms of dogs per
    5·1 answer
  • how would you convert the repeating, nonterminating decimal to a fraction? explain the process as u solve the problem 0.1515...
    13·1 answer
  • Miranda is at her aunt's house for a family gathering with 11 other family members, ranging from her cousins and siblings up to
    7·1 answer
  • Solve this equation. (4w-28)+(11w+13)=180
    13·1 answer
  • Solve for X:<br> 1.) 3x-4=6x+5<br> 2.) 3x-4=6x+5<br> 3.) -2(1+7x) = -100<br> 4.) x - 1 + 3= - 2- x
    13·2 answers
  • Zamira and Courtney share a 16 oz box of cereal. By the end of the week, Zamira has eaten 38 of the box, and Courtney has eaten
    6·1 answer
  • Given f(x) = 9(2 - x), what is the value of f(-3)?
    8·2 answers
  • Solve. 4x + 3 = -13 <br><br><br><br> A. x = -4<br><br> B. x = 4<br><br> C. x = 64<br><br> D. x = -64
    15·2 answers
  • Troy and Lisa were shopping for school supplies. Troy bought 3 notebooks and 5 thumb drives for $20.25. Lisa bought 8 notebooks
    8·1 answer
  • Y = (x - 5)(x - 5)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!