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
Dmitry_Shevchenko [17]
3 years ago
15

X +y=5, 3x-2y+5=0, this is the question​

Mathematics
1 answer:
Neko [114]3 years ago
4 0

Step-by-step explanation:

x+y=5

3x-2y+5=0

3x-2y= -5

x+y=5...... equation 1

3x-2y= -5....... equation 2

there fore make x the subject of the formula in equation 1

x=5-y.. equation 3

substitute equation three in equation 2

3(5-y)-2y=-5

15y-3y-2y=-5

10y=-5

divide both sides by 10

y=-5/10

y=-½

substitute y into equation 1

x+(-½)=5

x=5+½

x=5½

x=5½,y= -½

You might be interested in
I NEED HELP PLEASE !!!!! :(
zubka84 [21]

Step-by-step explanation:  use a histograph

4 0
3 years ago
Jenna found a pair of sneaker that cost $64.She has a 15% off coupon. How much will she pay for the sneakers?(without Tax?)
Vesnalui [34]
$64 x .15 = $2.40 $16.00 - $2.40 = $13.60
8 0
3 years ago
I am in need of some help :(It looks so simple yet I don't get how to do it. Can anyone help explain?(picture of question attach
Firdavs [7]

x = 14

Explanation:

height = x

base 1 = 98

base 2 = 2

Using altitude formula in geometric mean:

base 1/height = height/base 2

98/x = x/2

\begin{gathered} \frac{98}{x}=\frac{x}{2} \\ \text{cross multiply:} \\ 2(98)\text{ = x}\times x \end{gathered}\begin{gathered} 196=x^2 \\ \text{square root both sides:} \\ \sqrt[]{196}\text{ = }\sqrt[]{x^2} \\ x\text{ = }\sqrt[]{196} \\ x\text{ = 14} \end{gathered}

5 0
1 year ago
Consider the region bounded by
Montano1993 [528]
The equation is a circle centered at the origin with radius 8 (sqrt(64))
Therefore, the bounded region is just a quarter circle in the first quadrant.

Riemann Sum: ∑⁸ₓ₋₋₀(y²)Δx=∑⁸ₓ₋₋₀(64-x²)Δx

Definite Integral: ∫₀⁸(y²)dx=∫₀⁸(64-x²)dx
4 0
3 years ago
Knowing that the result of expanding (x+a)(x-6) is x²+mx-48, find the values ​​of a and m.​
Citrus2011 [14]

We know -48 came from (a)(-6), the "L" in "FOIL".

If -48 = -6a, then a = 8.

Now with a=8, go ahead and FOIL (x+8)(x-6) to find m.

6 0
2 years ago
Other questions:
  • Can someone please help me with this
    15·1 answer
  • How to change a logarithmic equation into exponential form?
    8·1 answer
  • Chang has 2 shirts: a white one and a black one. He also has 2 pairs of pants, one blue and one tan. What is the probability, if
    11·2 answers
  • Find the surface area
    7·1 answer
  • Data was collected from a simple random sample of 200 cell phone users age 18 or older in the United States. Each user was categ
    12·2 answers
  • Solve x<br>2x+<br><img src="https://tex.z-dn.net/?f=2x%20%2B%20%20%5Csqrt%7B10%20-%20x%20%7C%20%7D%20%20%3D%20%20-%201" id="TexF
    5·1 answer
  • HELPPPPP MEEEE PLEASE
    9·2 answers
  • LOOK AT THE PICTURE PLEASE QUICK ITS EASY
    13·1 answer
  • How many 4/5 cups servings are in 2/5 of a cup of ice cream? ( in simplest fraction from)
    10·1 answer
  • A motorist travels from town A to town B, which are 84km apart. If he has completed 7/8 of his journey, what is the distance he
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!