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
Misha Larkins [42]
3 years ago
6

Y=x+8 Y=-4x-12 Solve each system by substitution

Mathematics
1 answer:
iVinArrow [24]3 years ago
6 0

Answer:

Step-by-step explanation:

hello :

Y=x+8

Y=-4x-12

-4x-12 = x+8

-5x = 20

x = -4

but : y=x+8

so : y=-4+8 = 4

You might be interested in
Consider the diagram below.<br> Which of the following statements is correct?
Nutka1998 [239]

Answer:

A

Step-by-step explanation:

The diagram shows two parallel lines XY and WV.

1. Parallel lines XY and WV are cut by transversal XW, then angles YXZ and VWZ are congruent as alternate interior angles.

2. Parallel lines XY and WV are cut by transversal YV, then angles XYZ and WVZ are congruent as alternate interior angles.

AA similarity theorem states if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.

So, \triangle XYZ\sim \triangle WVZ by AA similarity

7 0
3 years ago
Read 2 more answers
Find the variable 6x-8=34
GenaCL600 [577]

x is the variable

<em>In mathematics, a variable is a symbol; in this case, X.</em>

4 0
3 years ago
In which months were the expenses greater than the income? Name the month and find how much money was lost.
Liono4ka [1.6K]
 expenses is greater in Jan and Feb

Jan −85.6 Loss
   
Feb −162.44 Loss    

Mar 0 

June 306.77 Gain

July 301.5 Gain

Aug 337.88 Gain


5 0
3 years ago
Read 2 more answers
Integrate the following: ∫<img src="https://tex.z-dn.net/?f=5x%5E4dx" id="TexFormula1" title="5x^4dx" alt="5x^4dx" align="absmid
Fiesta28 [93]

Answer:

A. x^5+C

Step-by-step explanation:

This is a great question! The first thing we want to do here is to take the constant out of the expression, in this case 5. Doing so we would receive the following expression -

5\cdot \int \:x^4dx

We can then apply the power rule " \int x^adx=\frac{x^{a+1}}{a+1} ", where a = exponent ( in this case 4 ),

5\cdot \frac{x^{4+1}}{4+1}

From now onward just simplify the expression as one would normally, and afterward add a constant ( C ) to the solution -

5\cdot \frac{x^{4+1}}{4+1}\\ - Add the exponents,

5\cdot \frac{x^{5}}{5} - 5 & 5 cancel each other out,

x^5 - And now adding the constant we see that our solution is option a!

3 0
3 years ago
Read 2 more answers
A manatee surfaced for air 3 times in 120 seconds.how many seconds went by before the manatee surfaced the first time if it held
Juliette [100K]

Answer:

40 seconds

Step-by-step explanation:

The ratio would be 3:120, indicating the amount of times it went up for air in 120 seconds. In order to find the answer, we'll find the unit rate. 120 divided by 3 is evenly 40. That means, the unit rate is 1:40. It also means that 40 seconds went by before the manatee surfaced the first time (if it held its breath for the same rate).

7 0
3 years ago
Other questions:
  • Dilma is on a 10 1/2 mile hike. She has hiked 2/3 of the total distance already. How many miles has she already hiked?
    9·2 answers
  • 13x + 7 (-3x -1) = 63
    14·2 answers
  • Find the sum of – 1022 – 2 + 6 and 10x2 – 5.
    8·1 answer
  • An engineer needs a metal box to shield sensitive electronic devices from external electric fields. One side of the box should b
    15·1 answer
  • Which pair of ratios is proportional?
    11·1 answer
  • Math please help thanks only #4
    8·1 answer
  • Blueberry frozen yogurt costs $0.59 per ounce. How much would 3 ounces cost?
    7·1 answer
  • What is the measure of angle JHN.
    6·2 answers
  • Please help me if you can​
    8·2 answers
  • 5<img src="https://tex.z-dn.net/?f=5x%5E%7B2%7D%20%2B%2020x%20-%2060%20%3D" id="TexFormula1" title="5x^{2} + 20x - 60 =" alt="5x
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!