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
xxMikexx [17]
3 years ago
5

Y=2x-5 x+y=7 solve by elimination

Mathematics
2 answers:
marta [7]3 years ago
7 0

Answer:

x = 4

y = 3

Step-by-step explanation:

First, reorder the first equation to make it into the same format as the second equation:

y = 2x - 5

-2x + y = -5

Then, put the equations together:

-2x + y = -5

x + y = 7

Solve by elimination by multiplying the bottom equation by 2, then add the equations together and solve for y:

-2x + y = -5

2x + 2y = 14

3y = 9

y = 3

Then, plug in 3 as y into one of the equations to solve for x:

y = 2x - 5

3 = 2x - 5

8 = 2x

4 = x

So, the answer is x = 4 and y = 3

kenny6666 [7]3 years ago
6 0

Answer:

x=4

y=3

im 100% sure

You might be interested in
On a test, Shoshana got 65% or 23.4 of the items correct? How many items were on the test?
Marizza181 [45]
65 % ------------------ 23.4 items
100 % ----------------- x items
65 : 100 = 23.4  : x
65 x = 100 * 23.4
65 x = 2340
x = 2340 : 65
x = 36
Answer: there were 36 items on the test.
6 0
3 years ago
Read 2 more answers
put the following decimals in order of size, starting with the one of least value 0.125 0.4 0.62 1.05 0.05
xeze [42]

Answer:

0.05, 0.125, 0.4, 0.62, 1.05

Step-by-step explanation:

8 0
3 years ago
Find the volume of the cylinder.
Georgia [21]
<h3>Answer:</h3><h3>Exact volume = 32pi</h3><h3>Approximate volume =  100.48</h3>

The approximate volume only applies when pi = 3.14

Use either answer, but not both of course.

===============================================

Work Shown:

V = volume of cylinder

V = pi*r^2*h

V = pi*2^2*8

V = pi*32

V = 32pi .... exact volume in terms of pi

V = 32*3.14

V = 100.48 .... approximate volume when we use pi = 3.14

6 0
3 years ago
How do I convert these improper fractions to mixed numbers: 29/4, 13/6, 73/9, 65/8, 17/2, 5/2, 25/4, 43/7, 29/4, 73/9, 19/3, 43/
slava [35]
Divide the numerator by the denominator 
use the answer as the whole number
use the remainder as the numerator
keep the deniminator

the answers: 
7  1/4
2   1/6
8  1/8
8  1/2
2  1/2
6  1/4
6  1/7
7  1/4 (same question)
8  1/8 (same question)
6  1/3
2  1/5
9  1/10
6  1/6

5 0
4 years ago
Read 2 more answers
Please solve this. Thanks
svlad2 [7]

\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2.\\\\l\ \parallel\ k\iff m_1=m_2\\\\\text{We have}\\\\L_1:y=5x+1\to m_1=5\\\\L_2:2y-10x-3=0\qquad\text{add 10x and 3 to both sides}\\\\L_2:2y=10x+3\qquad\text{divide both sides by 2}\\\\L_2:y=5x+1.5\to m_2=5\\\\m_1=m_2\ \text{therefore}\ l_1\ \text{and}\ L_2\ \text{are parallel.}

3 0
3 years ago
Other questions:
  • two sides of an equilateral triangle measure (2y+3) units and (y^2 -5) units. if the perimeter of the triangle is 33 units, what
    15·2 answers
  • What is the equation of a line with a slope of -1 and a y-interceptor -5
    5·1 answer
  • Write each vector in component form
    13·1 answer
  • How to rearrange the equation so "y" is on the left and everything else on the right?
    13·1 answer
  • What interest rate would you need to get if you want $10,000 to grow to $25,000 in just 4 years assuming it is simple interest g
    5·1 answer
  • Maggie’s brother is 3 years younger thank twice her age the sum of their ages is 24 how old is Maggie
    14·1 answer
  • A balanced coin is tossed three times. Let Y equal the number of heads observed.
    10·1 answer
  • Marta spends $15.98 for 2 pounds of pecan halves. What is the unit price?
    6·2 answers
  • Deltamath <br><br> Please help me
    6·2 answers
  • (for 50 points) Choose an expression that is equivalent to negative two raised to the fourth power divided by negative two raise
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!