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
podryga [215]
3 years ago
5

Solve using elimination. -7x – 5y = -4 7x + 9y = -4

Mathematics
1 answer:
Brut [27]3 years ago
5 0
-7x-5y=-47x+9y=-4

combine like terms to cross out the 7x
solve for y, to get -2
plug it back in to one of the equations and x is 2

y=-2
x=2
You might be interested in
Kelly leaves her home and cycles 4y miles south then cycles (3y + 9) miles east
atroni [7]
4y(3y + 9)
12y + 36
36 ÷ 12=x=3
7 0
3 years ago
A bamboo plant grows about 1.26 feet each
JulsSmile [24]

Answer:

8.82 feet in one week hopes it's helps

5 0
3 years ago
Read 2 more answers
A bookstore classifies its books by reader group, type of book, and cost. What is the probability that a book selected at random
Alina [70]

Answer:

A) 315/1005

Explanation:

Total choices: 120 + 255 + 35 + 60 + 200 + 110 + 75 + 150 = 1005

Favorable choices: 255 + 60 = 315

probability:

favorable choices/total choices

315/1005

21/67

3 0
2 years ago
Please solve this problem. I can't solve it! And can someone explain how to do it please??
s2008m [1.1K]

Answer:

1.23

Step-by-step explanation:

They already give u the amount of oz in a gram, so you would want to multiply 0.035 by 37.

6 0
3 years ago
Can someone help me with this prooblem
Scorpion4ik [409]

Answer:

9.85

Step-by-step explanation:

I hate these, LOL

We're going to draw a triangle on the graph paper to solve this. (in theory)

The top point is at 2 on the x axis, and the bottom is at 6. That's a difference of 4. Draw a line from the top dot over 4 spaces, so a line dropped from there could go straight to the bottom dot. We'll call this line/side of the triangle a, and a = 4.

Then we drop the line from there (6, 4) down to the second dot at (6, -5). That line is 9 places long. We'll call this line/side of the triangle b, and b = 9.

(This is so much easier to draw than type, I'll attach a picture).

Then we connect the two dots diagonally to form line/side c of our triangle. This is the length we don't know.

The pythagorean theorem says a^2 + b^2 = c^2

So a = 4, b = 9, c is unknown for our triangle

(4)(4) + (9)(9) = c^2

16 + 81 = 97

The square root of 97 = 9.8488, so if they have you round, I would say 9.85

Sorry if this just confused you more.

5 0
3 years ago
Other questions:
  • Why do you have to show work for math
    7·2 answers
  • Help? Due today please
    7·1 answer
  • Can someone answer this question please answer it correctly if it’s correct I will mark you brainliest
    5·1 answer
  • A bouncy house costs $75 to rent for every 2 hours plus 8.25%. what is the total cost for 6 hours?
    7·1 answer
  • A rectangle’s length is 4 more than twice its width. Its area is 240 square centimeters.
    13·2 answers
  • Sarah bought a binder for $7.25 and six folders that totaled $9.05. How much did each folder cost?
    9·1 answer
  • Please help i am really struggling
    14·1 answer
  • The angle marked a = 79°.<br> Work out the value of x.<br><br> The diagram is not drawn accurately.
    6·2 answers
  • In the soup can below, the height is approximately 538 inches and the diameter is 3 inches.
    6·1 answer
  • A function is given. g(x) = 6 x ; x = 1, x = a. determine the net change between the given values of the variable.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!