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SpyIntel [72]
3 years ago
13

Simplify (4x+7)-(-3x-9)+9x-28

Mathematics
1 answer:
MrRissso [65]3 years ago
8 0

Answeriadk

Step-by-step explanation:

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Help ASAP!!!!!!!! PLEASEE
WARRIOR [948]

Her brother sent C. 490 messages.

In order to find this, we need to set it up as a proportion. Once we have done that, we can cross multiply and solve for the unknown variable.

(4/7) = (280/x) -----> Cross multiply.

4 * x = 7 * 280

4x = 1960

x = 490

6 0
3 years ago
Please simplify (y^-5)^4
pav-90 [236]

Answer:1/y^20

Step-by-step explanation:

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2 years ago
Use AAS to prove the triangles congruent..........
andriy [413]
Hey there, 29levelupchaye2!

Angles B and G are congruent because they are alternate interior angles since they are in between two parallel lines.

Angles ACB and HFG are congruent because they are alternate exterior angles since they are both outside two parallel lines cut by a transversal.

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4 0
3 years ago
M minus 5 minus (negative 12)
Nimfa-mama [501]
M-5-(-12) would equal m+7 because there is a negative before the parentheses and in the parentheses which means you would change it to a positive so, negative 5 plus positive 12 is 7 and since the 7 is positive you would add m (hope this helped)
6 0
3 years ago
Find ordered pair that is solution for liner equation 4x - 5y=20
Nat2105 [25]

Answer:

(0,-4) (5,0)

Step-by-step explanation:

4x-5y=20

First, we must put the equation into slope intercept form: y= mx+b

5y=4x-20=y=4/5x-4

The y intercept, by definition, is b. In this scenario, b is -4.

One ordered pair that works is (0,-4).

Also, we can find the ordered pair for the x intercept. By definition, the x intercept is the value of x when y equals zero. hence, we substitute 0 for y and then we can find an ordered pair that works and solve for x!:

  1. 0=4/5(x)-4= 4=4/5x
  2. 4x=20
  3. x=5

Therefore, (5,0) works as well!

3 0
3 years ago
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