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
lora16 [44]
3 years ago
5

One number is -3 times the first number. The sum of the numbers is -4. What is the second number?

Mathematics
1 answer:
kobusy [5.1K]3 years ago
6 0
Lets say that the first number is x and the second number is y.
from the question we know that:
y=-3x and x+y=-4
from there, you need to replace the y in the second equation with -3x since we know that is what y equals so we can have an equation with only one variable.
x+-3x+-4
Then you solve for x.
-2x=-4
x=2
then you find y with the fact that y=-3x
y=-6
You might be interested in
What’s the answer someone please help lol
serious [3.7K]

a is the answer, as i is irrational no

7 0
3 years ago
What is an equation of the line that passing through the points (-2, -5) and (4, 7) ?
monitta

Answer:

y=2x-1

Step-by-step explanation:

Use the slope-intercept formula: y=mx+b where m is slope and b the y-intercept.

(-2,-5)(4,7)

Use the slope formula for when you have two points:

\frac{y(2)-y(1)}{x(2)-x(1)}=\frac{rise}{run}

Rise over run is the change in the y-axis over the change in the x-axis. Insert values:

\frac{7-(-5)}{4-(-2)}

Simplify parentheses (negative+negative=positive)

\frac{7+5}{4+2}

Simplify

\frac{12}{6}=2

2 is the slope:

y=2x+b

Now use one of the points to find the y-intercept by substituting the x and y values into the equation. Solve for b:

(4,7)

y=2x+b\\7=2(4)+b

7=8+b\\7-8=8-8+b\\7-8=b\\-1=b\\b=-1

The y-intercept is -1. Insert into the equation. Change the + symbol to -:

y=2x-1

Done.

6 0
3 years ago
In a bag of marbles, 6 are blue. The probability of picking out a blue marble from the bag is 3/5. How many marbles are in the b
postnew [5]

Answer: 3/5 = (6/10). There are 10 TOTAL marbles in the bag.

Step-by-step explanation:

Since it is a question of fractions, you can assume any reasonable number and work with the numbers. We know initially that there are 6 marbles and they are ALL blue and the rest are another color or colors. So BLUE = 6/10 and the other colors 4/10 for 2/5.

6 0
3 years ago
The graph shown is the solution set for which of the following inequalities?
elena55 [62]
The inequality is y < l x+3 l
8 0
3 years ago
Read 2 more answers
Find a number that is 5 times as much as 4 divided by 2
barxatty [35]
10....

4 x 5 ÷ 2 is 10
4 0
3 years ago
Read 2 more answers
Other questions:
  • Does anyone know the answer to this???
    10·1 answer
  • -1 ≤ n+2 ≤ 6
    7·1 answer
  • Anyone know this thanks
    12·1 answer
  • Is 8yd greater or less than 288in
    9·1 answer
  • For one month Siera calculated her home town's average high temperature in degrees Fahrenheit. She wants to convert that tempera
    11·2 answers
  • How many times greater is the value of 3 in the product of 34 × 10000 in the value of 3 in 34
    8·1 answer
  • Is 3/2 less than greater than equal than 1
    7·1 answer
  • Exhibit 11-1 Last year, the standard deviation of the ages of the students at UA was 1.81 years. Recently, a sample of 10 studen
    6·1 answer
  • 1. Leonardo da Vinci asserted that a person's height is proportional to the length of the
    6·1 answer
  • An altitude is drawn from the vertex of an isosceles triangle, forming a right angle
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!