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
mars1129 [50]
3 years ago
14

Need help finding out what 3x=y and x-2y = 10

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
4 0

Answer:

x=-2, y=-6

Step-by-step explanation:

Simple substitution.

Since y is isolated in one of the equations already, you can plug it into the second equation.

x - 2(3x) = 10

x - 6x = 10

-5x = 10

x = -2

Sub. x = -2 into 3x = y:

3(-2) = y

y = -6

You might be interested in
What is the length of AD?
Setler [38]
We find the length of AD using the similarity of right triangle property. See image attached.

AD² = BD × CD
AD² = 9 × 36
AD² = 324
AD² = 18²
AD = 18

The length of AD is 18 units

7 0
3 years ago
How to solve 8340divided by 1.2
s344n2d4d5 [400]
It’s 6,950 because if you do long division this is what you get
6 0
2 years ago
5 square root 13^3. <br> A 13^2. <br> B 13^15 <br> C 13^5/3. <br> D 13^3/5
arlik [135]
Answer is D.

When you have an exponent that is a fraction, the denominator is the number you root the base by. In this case the exponent is 3/5, so you fifth root 13 cubed.
5 0
3 years ago
of the students in your class, 12% are left-handed. What fraction of the students are left-handed? Are there more right-handed o
Ksivusya [100]

Answer:

<em><u>The answer here is 3/25, more left handed students.</u></em>

Step-by-step explanation:

12/100 are left handed, which reduces to 3/25. This means that there are only 3 left handed kids for every 22 right handed kids, showing that there are more right handed students than left handed.

7 0
2 years ago
A farmer sells 9.9 kilograms of pears and apples at the farmer's market. of this weight is
ivanzaharov [21]

The given question is incomplete. The complete question is:

A farmer sells 9.9 kg of pears and apples at the farmers market. 3/4 of this weight is pears,and the rest is apples.how many kilograms of apples did she sell at the farmers market.

Answer: The farmer sells 2.475 kg of apples.

Step-by-step explanation:

Given : Total weight of pears and apples = 9.9 Kg

\frac{3}{4} of the total weight is pears

Hence, weight of pears = \frac{3}{4}\times 9.9=7.425 Kg

Therefore weight of apples = Total weight - weight of pears = (9.9 -7.425) = 2.475 Kg  

5 0
2 years ago
Other questions:
  • PLEASE HELP QUICKLY!! I WILL MARK BRAINLIEST!!<br>Find the value of x:
    15·1 answer
  • I need to know the answer and how to get it
    11·1 answer
  • There are 3 people at a party. If each person must shake hands with every other person at the party exactly once, how many hands
    8·1 answer
  • What is the value of the function f(x)=10x+2?
    11·1 answer
  • Could someone help me do this using substitution I need to know how to do this for math
    13·2 answers
  • An estate agent sold a house for £m and receives 10% commission. how much commission did he receive?
    7·1 answer
  • Find the radius of each circle. use 3.14for the value of Pie. round your answer to
    5·1 answer
  • WILL GIVE BRAINLIEST!! PLEASE HELP ASAP!! (Include question number)
    14·2 answers
  • please tell me. i have an hr to finish and try to get a passing grade so i won’t have to retake this class
    7·1 answer
  • Identify the vertex of the graph. Tell whether it is a minimum or maximum.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!