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
elena55 [62]
2 years ago
7

10

Mathematics
2 answers:
Natasha_Volkova [10]2 years ago
6 0

Answer:

x = 2, y = -1.

Step-by-step explanation:

2x + y = 3

x  -   y  = 3

Adding the 2 equations eliminates y:

3x = 6

x = 2.

Substitute for x in the first equation:

2(2) + y = 3

y = 3 - 4

y = -1.

Check the results by substitution in equation 2:

2 - (-1)

= 2 + 1 = 3 .

Checks OK.

Elina [12.6K]2 years ago
4 0
3 because it right
You might be interested in
What is the value of m in the equation 1/2 m - 3/4n=16 when n=8
zhuklara [117]
1/2m - 6= 16
1/2m=22
m= 44
6 0
2 years ago
Which choice is the explicit formula for the following geometric sequence?0.5, -0.1, 0.02, -0.004, 0.0008, ...
Minchanka [31]
a_1=0.5\\a_2=-0.1\\a_3=0.02\\a_4=-0.004\\a_5=0.0008\\\\a_n=a_1\cdot q^{n-1}\\\\q=a_2:a_1\to q=-0.1:0.5=-0.2\\\\a_n=0.5\cdot(-0.2)^{n-1}=0.5\cdot(-0,2)^n\cdot(-0.2)^{-1}\\\\=0.5\cdot(-0.2)^n\cdot(-5)=-2.5\cdot(-0.2)^n\\\\\boxed{a_n=-2.5\cdot(-0.2)^n}
6 0
3 years ago
The floor of a triangular room has an area of 32 1/2 sq.m. If the triangle’s altitude is 7 172 m, write an equation to determine
sineoko [7]

Answer:

\frac{(2)A}{h} =b

b=0.00906m

Step-by-step explanation:

Hello! To solve this exercise we must remember that the area of ​​any triangle is given by the following equation

A=\frac{bh}{2}

where

A=area=32.5m^2

h=altitude=7172m

b=base

Now what we should do take the equation for the area of ​​a rectangle and leave the base alone, remember that what we do on one side of the equation we must do on the other side to preserve equality

A=\frac{bh}{2} \\\frac{2}{h} A=\frac{bh}{2} \frac{2}{h} \\

\frac{A(2)}{h} =b

solving

\frac{2(32.5)}{7172} =0.0090[tex]\frac{A(2)}{h} =b\\b=0.00906m

4 0
3 years ago
What are the coordinates of this and radius!
LiRa [457]

-1,1 I already told u, nut

3 0
3 years ago
Solve for x then find the measure of angle B
EastWind [94]

Answer:

5

Step-by-step explanation:

thanks for the points

4 0
3 years ago
Other questions:
  • Starting at its rightmost position, it takes 1 second for the pendulum of a grandfather clock to swing a
    15·2 answers
  • Rolff recently completed a book of 20 deduction puzzles. the scatterplot below shows the time it took rolff to solve a puzzle ve
    8·1 answer
  • Can someone help me with this question and please show me how you got them thanks in advance
    10·1 answer
  • Help please i realllyy need help
    8·2 answers
  • For 1-6, find the slope of the line of (-2,4) and (4,2)
    10·1 answer
  • What does 15.75 round to?
    10·1 answer
  • What is the solution set of the compound inequality x+1<-2x+11<3x+5
    10·1 answer
  • HELP!!! Brainly for the correct answer.
    5·1 answer
  • 45 POINTS FOR AWNSER PLS EXPLAIN NUMBER 42
    15·2 answers
  • Find the derivative of 76x + 1 at x = 1.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!