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
Alisiya [41]
3 years ago
15

I really need help with this problem steps

Mathematics
1 answer:
melamori03 [73]3 years ago
5 0
Solve for y by setting one equation =to X after that you can substitute the equation into the other one let's set the first one in X= FORM
X-7y=10
-2x+14y=-20

Add 7y to both sides of the first equation to let x stand alone
X=7y+10
Now you can substitute x on the second equation
-2 (7y+10)+14y=-20
Distribute
-14y-20+14y=-20
Add and simplify
Us cancel out =0
-20=-20
0=0
They are the same equations you can also divide the second equation by -2 which would make it look like this
X-7y=10
-2 (x-7y=10)
Let me know if I have answered your question
You might be interested in
What is the answer when you evaluate n + m -2(m-m) when m = 3 and n = 2?
Effectus [21]

Answer:

5

Step-by-step explanation:

n + m -2(m-m)

Combine like terms

n+m+2(0)

n+m

Let m=3 and n=2

2+3

5

7 0
2 years ago
How to do it ? plz answer it..​
Vera_Pavlovna [14]

I hope you understand....

6 0
3 years ago
Each letter of the word GEOMETRICAL is written on a separate piece of paper and put in a bag. You pick a random letter from the
zhuklara [117]

Answer:

5/11

Step-by-step explanation:

Probability is the chance that something will happen. Basically, it answers the question of how many times an event will occur in a given number of opportunities.

In this example, the word "GEOMETRICAL" has 11 letters and 5 of them are vowels. They are: E, O, E, I, A. The probability of picking a vowel is 5/11. We could say that there are 5 out of 11 chances of a vowel to occur whenever a piece of paper is taken out of the bag.

7 0
3 years ago
Line m and p are perpendicular. if the slope of line m is -3, what is the slope of line p
telo118 [61]

Perpendicular slopes multiply to -1, so are <em>negative reciprocals.</em>

-1 / -3 = 1/3

Answer: B.  1/3

6 0
3 years ago
Convert the rate 1000 fluid ounces per 2 hours to cups per minute
Ronch [10]
There are 8 ounces in a cup, so there are 125 cups in 1000 ounces.
1000 / 8 = 125
there are 60 minutes in an hour and 120 minutes in 2 hours
so 1000 ounces / 2 hours is
125 cups / 120 minutes
125 / 120 = 1.04 cups per minute

Check your work
multiply times 60 to get cups per hour
1.04 * 60 = 62.4 cups per hour
multiply times 8 to get ounces per hour
62.4 * 8 = 499.2
multiply times 2 to get ounces per 2 hours
499.2 * 2 = 998.4
the number is not quite 1000 due to rounding the 125 / 120 as it is closer to 1.041666666666667
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the distance between the points (15,26), (7,20)
    6·1 answer
  • Is 5/6 greater than 5/8
    10·2 answers
  • Can someone help me with 19, 20, 23, and 24.
    8·1 answer
  • Find the x-intercept and the y-intercept of the graph of the equation 1/3x + 9y = 15. Then graph the equation.
    12·2 answers
  • The two-way table shows the distribution of gender to favorite film genre for the senior class at Mt. Rose High School.
    13·1 answer
  • Write the ratio 1.6 : 4 as a fraction in simplest form, with whole numbers in the numerator and denominator.
    11·1 answer
  • I need help urgently!! I’ll make you brainliest!!
    13·1 answer
  • How much of the circle is shaded? Write your answer as a fraction in simplest form.
    14·2 answers
  • How many times can 1021 go into 6
    10·1 answer
  • Select all the correct answers.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!