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
Kipish [7]
3 years ago
9

Y= -5x +10 y= -2x-2 solve by substituions

Mathematics
1 answer:
Veronika [31]3 years ago
4 0

Answer:

x = 4, y = -10

Step-by-step explanation:

if both expressions equal 'y' then you can solve by setting them equal to each other:

-5x + 10 = -2x - 2

-3x + 10 = -2

-3x = -12

x = 4

find 'y':

y = -5(4)+10

y = -20 + 10

y = -10

You might be interested in
Is 4/16 equivalent to 0.25
pentagon [3]
Yes it is
you can solve it dividing 4 <span>÷ 16 and you have 0.25</span> 
4 0
3 years ago
How can i solve this<br> (x+2)(2x+3)<br> step by step please
MrRissso [65]

Answer:

2x² + 7x + 6

Step-by-step explanation:

To solve this polynomial, you need to distribute/multiply, (x+2) with (2x+3).

You would first multiply (x) with 2x and 3. This would give you 2x² and 3x. You would then multiply 2 with 2x and 3. This would give you 4x and 6. You then add the like-terms, which are 3x and 4x, which gives you 7x. This would give you your final expression of 2x² +7x + 6.

(x+2)(2x+3)

2x²+ 3x + 4x + 6

2x² +7x + 6

6 0
3 years ago
Read 2 more answers
How do I find the length of an acute triangle if I only know one angle measure and one side length.
baherus [9]
U have to measure what ever your measuring example

say your measuring a square measure  the sides like this --> |_|   <---

these sides

enjoy
8 0
4 years ago
In circle E with m \angle DEF= 70m∠DEF=70 and DE=13DE=13 units find area of sector DEF. Round to the nearest hundredth.
Anuta_ua [19.1K]

Answer:

103.18units³

Step-by-step explanation:

Area of the sector DEF = theta/360 * πr²

r is the radius

theta is the angle subtended at the centre

theta =70 degrees

radius DE = 13units

Substitute

Area of the sector = 70/360 * 3.14(13)²

Area of the sector = 7/36 * 530.66

Area of the sector = 3,714.62/36

Area of the sector = 103.18units³ (to the nearest hundredth)

7 0
3 years ago
Read 2 more answers
Please help me with this problem
Alexus [3.1K]
(a) It is leaking 18 liters per minute.

Explanation : From 15 minutes to 20 minutes, your starting point at 15 is 590 liters and at 20 you have exactly 500. Next you have 25 which is now at 410. So it's leaking 90 liters every five minutes, so of course dividing the two (90 ÷ 5) you get 18.

(a)² it increases for about the same time that it would decrease of course.

(b) The vat started at 860 liters before they started draining it.

Explanation : Well, all it takes is just working backwards, add 90 liters to the liters at 15 minutes and deduct five minutes from 15. Do this process until you arrive at 0. It's simple
7 0
4 years ago
Other questions:
  • Thanks for the help in advance!
    9·1 answer
  • Is 0.523 a rational number?​
    5·2 answers
  • Can someone help me on 13<br><br><br><br> Plz
    8·2 answers
  • Which set of measurements identify the length width, &amp; diagonal of a
    6·1 answer
  • The additive inverse of -2.5
    15·2 answers
  • To find the number of inches in 3.5 meters, multiply the number of meters given (3.5) by _____. 36 25.4 39.4 0.305
    6·2 answers
  • Triangle DEF has vertices D(0,4), E(10,4), and F(5,9) Prove that the triangle is isosceles and a right triangle.
    7·1 answer
  • The sum of three consecutive numbers is 276. Find the numbers.<br>​
    13·2 answers
  • At the beginning of the year, Ethan has $700 in his savings account and Faith has $1,360 in her savings account.
    15·1 answer
  • second angle of a triangle is 10 degrees larger than the first angle. Third angle is 10 larger than second angle. Find the small
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!