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
gayaneshka [121]
3 years ago
10

Wht is the substitution of x+y=9 and x=2y

Mathematics
1 answer:
Rama09 [41]3 years ago
3 0
I hope this helps you



2y+y=9



3y=9



y=3


x=2y=2.3=6
You might be interested in
Please help due today!
Inessa [10]

Answer:

NO=22.6

Step-by-step explanation:

NO=MO+MN

after substituting MO and MN,

NO=15+7.6

=22.6

also, the problem says to answer with only the number, so just type 22.6!

8 0
3 years ago
Read 2 more answers
How do you solve this
Trava [24]
1. reduce the fraction and subtract the exponents

(5x^7y^2)/2

3 0
3 years ago
This is for 75 points and brainlyest if you can help ​
hoa [83]

Answer:

(3x - 5°) = 52°

Step-by-step explanation:

Formula we use,

→ A + B + C + D + E = 540°

Then the value of x will be,

→ A + B + C + D + E = 540°

→ (6x + 25°) + (5x + 10°) + (3x - 5°) + (5x + 10°) + (6x + 25°) = 540°

→ (6x + 5x + 3x + 5x + 6x) + (25° + 10° - 5° + 10° + 25°) = 540°

→ 25x + 65° = 540°

→ 25x = 540° - 65°

→ 25x = 475°

→ x = 475/25

→ [ x = 19° ]

The value of angle (3x - 5°) will be,

→ (3x - 5°)

→ (3 × 19) - 5°

→ 57° - 5°

→ [ 52° ]

Hence, value of angle (3x - 5°) is 52°.

6 0
1 year ago
Need help ASAP will give brainliest
NISA [10]
It’s might be 42 i’m not sure
8 0
3 years ago
Charlie is standing 45 feet from the base of 100 foot tall tree. What is the angle of elevation from him to the kite stuck on to
galben [10]
Hey. Let me help you on this one.

In order for us to solve this problem easier, let's break it apart. We can also graph the triangle so we get visual of this problem.

I drew a quick graph for you to easier understand this question. As you can see, Charlie is standing below the tree 45 feet from it, and we need to find the unknown angle measure.

Let's form a SOHCAHTOA function which you have probably already learned in your Geometry course.

First of all let's identify our sides. The side opposite of the right triangle is a Hypotenuse, and the side that's 45 feet is adjacent, since it's adjacent to the unknown angle.

We know that we need to use Cos (Cosine) with negative power to it in order to solve this question, since we are looking for the unknown angle measure.

Let's form the function which Cos, Hypotenuse, and Adjacent side.

Cos^{-1} =45/100

Now, let's solve the left part of this function


Cos^{-1} =0.45

Awesome. You will need to use your calculator for this part. Find the value of 0.45 when negative Cosine is used on it.

Cos^{-1} =0.45
63.25631605

Awesome. Let's round this number to the closest tenth

63.3 is the rounded value we have discussed below.

Answer: 63.3 degrees is the unknown measure of the angle

5 0
2 years ago
Other questions:
  • 4x + 16 - x = 22 + 6
    12·2 answers
  • A toy manufacturer is preparing to manufacture a puzzle cube in two different sizes. One of the puzzle cubes will have a side le
    5·1 answer
  • -6 (9 - 4)
    9·1 answer
  • what is the probability of selecting a red marble followed by a blue marble if you replace the marble in between drawing. a box
    9·1 answer
  • A certain television is advertised as a 34-inch TV (the diagonal length). If the width of the TV is 30 inches, how many inches t
    10·2 answers
  • Write (4√81)^5 in exponential form.
    13·1 answer
  • I need help as soon as possible!
    5·2 answers
  • A 4 meter ladder leans against a house forming a
    7·1 answer
  • The first five terms in a pattern are shown below. -0.5, -0.25, 0 , 0.25, 0.5, . . . Which equation represents the pattern?
    5·1 answer
  • The product of 3 and 12<br> what is the expression?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!