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
JulijaS [17]
3 years ago
9

4x + 10y= -40 -5x + 3y= -40

Mathematics
1 answer:
Marrrta [24]3 years ago
8 0

4x+10y=-40-5x+3y=-40

4x+5x=3y-10y=-40+40

9x=-7y=0

6x-5y=-209x+2y=-30

6x+209x =2y+5y=35

215x=7y=35

x-5y=-142x+4y=-30

x+142x=4y+5y=-30

143x=9y=-30

8x+6y=-10-x-3y=20

8x+x=-3y-6y=20+10

9x=-9y=30

You might be interested in
3. How many 1/8's are in 1 1/4?
Murrr4er [49]

Answer:

10

Step-by-step explanation:

There are two 1/8 in one 1/4. There are eight 1/8 in 1. 8/8 + 1/8 + 1/8 = ten 1/8.

3 0
3 years ago
Use the distributive property to simplify -4(6-3y)
denpristay [2]

Answer:

12y-24

Step-by-step explanation:

-4(6-3y)

-24+12y

3 0
3 years ago
Two jet planes simultaneously started travelling in opposite directions from the same airport. Four hours later they were 3800 m
alexira [117]

Answer:

Step-by-step explanation:

let the speed of one plane=x

speed of other plane=x+80

time=4 hrs

then 4x+4(x+80)=3800

4x+4x+320=3800

8x=3800-320

or 8x=3480

x=435

speed of one plane=435 m/h

speed of other plane=435+80=515 m/h

2.

Let he walks x hrs

then he take a taxi for 2-x hrs

4x+(2-x)50=31

4x+100-50x=31

-46x=-69

x=\frac{-69}{-46}=\frac{3}{2}

so he walks 3/2 hrs=1.5 hrs

travels by taxi=2-1.5=0.5 hrs

distance traveled by taxi=0.5×50=25 miles

8 0
3 years ago
Which describes how to find the solution 5k >22
inysia [295]

Answer:

<h2>k > 4.4</h2>

Step-by-step explanation:

5k>22\qquad\text{divide both sides by 5}\\\\\dfrac{5k}{5}>\dfrac{22}{5}\\\\k>4\dfrac{2}{5}\to k>4.4\to k\in(4.4,\ \infty)

8 0
3 years ago
What is the solution to the system of linear equations?
Rudik [331]
6x + 7y = 59...multiply by -4
4x + 5y = 41...multiply by 6
7 0
4 years ago
Read 2 more answers
Other questions:
  • Find the slope of the line through the following pair of points and draw the line through the points (4,1) (-1,-5)
    6·1 answer
  • Find the slope of the line using (4,-4) (8,-1) (0,-7) (-4,-10)
    11·2 answers
  • Find center of mass of a semi-circle with radius r and constant p ...?
    8·1 answer
  • Carly is saving money. Last month, she saved $120. This month, Carly saved 30% percent more than last month. How much money did
    9·1 answer
  • Area of a circle when the radius is 5
    6·2 answers
  • How to write-x^2-x+4 in descending order
    13·2 answers
  • Write a polynomial for the volume of a cube with a side length of (x-1) inches.​
    10·1 answer
  • You are cooking for a party. How long will it take to cook 30 ears of corn if it takes 20 minutes to cook a total of 25 ears of
    8·1 answer
  • I need help with this question
    7·1 answer
  • YOU MUST FOLLOW THE WORD PROBLEM 5 STEP PROCESS
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!