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
Bingel [31]
3 years ago
6

Solve this system of equations: 5x + y = 7 20x + 2 = y

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
7 0

Answer:

x = 1/5, y = 6

Step-by-step explanation:

5x + y = 7

y = 7 - 5x

Set equations equal to each other to eliminate y

7 - 5x = 20x + 2

7 = 25x + 2

5 = 25x

x = 1/5

y = 7 - 5(1/5)

y = 7 - 1

y = 6

You might be interested in
PLEASE ANSWER WITH SOLUTIONS. THX! I NEED IT ASAP!!
Diano4ka-milaya [45]
I think the first one might be 18 second might be 10
4 0
3 years ago
PLS HELP ILL GIVE BRAINLIEST!!!!!!!!
anastassius [24]

Answer:

It says it right there.

the answer that you need is 300

Step-by-step explanation:

Brainiest

8 0
2 years ago
Read 2 more answers
What are the vertical asymptotes of the function f(x) =5x+5/x2 + x-2
katen-ka-za [31]

let's recall that the vertical asymptotes for a rational expression occur when the denominator is at 0, so let's zero out this one and check.

\bf \cfrac{5x+5}{x^2+x-2}\qquad \stackrel{\textit{zeroing out the denominator}~\hfill }{x^2+x-2=0\implies (x+2)(x-1)=0}\implies \stackrel{\textit{vertical asymptotes}}{ \begin{cases} x=-2\\ x=1 \end{cases}}

5 0
2 years ago
For each value of y, determine whether it is a solution to -2y+75-5.<br> Is it a solution?
ser-zykov [4K]

Answer:

• No

• Yes

• Yes

• No

Step-by-step explanation:

To determine if the 4 given values of y are solutions to the inequality, start by solving the inequality. Solving an inequality is just like that of an equation, except that the direction of the sign changes when the inequality is divided by a negative number.

-2y +7≤ -5

Subtract 7 on both sides:

-2y≤ -5 -7

-2y≤ -12

Divide by -2 on both sides:

y≥ 6

This means that the solution can be 6 or greater than 6.

-10 and 3 are smaller than 6 and are not a solutions, while 7 and 6 satisfies the inequality and are therefore solutions.

_______

Alternatively, we can also substitute each value of y into the inequality and check if the value is less than or equal to -5.

Here's an example to check if -10 is a solution.

-2y +7≤ -5

When y= -10,

-2y +7

= -2(-10) +7

= 20 +7

= 27

Since 27 is greater than 5, it is <u>not</u> a solution to the inequality.

3 0
2 years ago
ASAP!!!!!!!!!<br> Can you simplify an improper fraction? THX!
dybincka [34]
Yes you can simplify an improper fraction

5 0
2 years ago
Read 2 more answers
Other questions:
  • Simplify the ratio.<br> 25: 40 : 15 =
    7·1 answer
  • The area of a circle is 37 square meters. find the radius to the nearest hundredth
    7·1 answer
  • Which product is positive?
    6·1 answer
  • A rental car costs $21 per day plus $0.40 per mile. If someone has $350 to spend and needs to drive the car 90 miles each day, f
    10·1 answer
  • Four-fifths of a number minus two is greater than three-tenths of twice that number
    7·1 answer
  • On Team C, 82.5% of the football players weigh more than 200 pounds. If 40 men are on the team, how many weigh more than 200 pou
    8·1 answer
  • Which pair of fractions is equivalent to 2/3 and 5/8?
    9·1 answer
  • What is the slope (16,-17) and (4,-13)
    10·1 answer
  • Someone help pls n thank you
    9·2 answers
  • Please answer these questions: are they rational or irrational numbers?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!