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lora16 [44]
2 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]2 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
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1 1/4 as a improper fraction ​
ludmilkaskok [199]
That would be
5/4
.
Explanation:
This answer is valid because, when you multiply
4
×
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, you get
4
. Then add one and keep the denominator, you will get
5
4
.
1
1
4
=
1
×
4
+
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4
=
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4
When you simplify
5
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, you will get
1
1
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Have a great day!
8 0
3 years ago
Read 2 more answers
Construct the exponential function that contains the points (0,2) and (3,54)
erma4kov [3.2K]

The exponential function that passes through (0,2) and (3,54) is a growth function

The exponetial function is y = 2 * 3^x

<h3>How to construct the exponential function?</h3>

The points are given as:

(x,y) = (0,2) and (3,54)

An exponential function is represented as:

y = ab^x

Substitute the points in the equation

2 = ab^0 and 54 = ab^3

Solve 2 = ab^0

a = 2

Substitute 2 for a in 54 = ab^3

54 = 2b^3

Divide by 2

27 = b^3

Take the cube roots of both sides

b = 3

So, we have:

y = ab^x

This becomes

y = 2 * 3^x

Hence, the exponetial function is y = 2 * 3^x

Read more about exponential functions at:

brainly.com/question/24077767

8 0
1 year ago
Graph the equations to solve the system y=x+4 y= -x - 6
Mama L [17]

Answer:

(-5, -1)

General Formulas and Concepts:

<u>Algebra I</u>

Functions

Graphing

  • Reading a Cartesian Plane
  • Coordinates (x, y)

Solving systems of equations by graphing

Step-by-step explanation:

Where the 2 equations intersect is the solution to the systems of equations.

5 0
3 years ago
Which expression is equivalent to 2x - 17?
liraira [26]

2x - 17?

= -17 +2x (using commutative property of addition, changing order and sum remains the same)

answer is A) -17 + 2x

8 0
3 years ago
Read 2 more answers
13 add 2x equals 3 what does x equal??
Anastasy [175]
13 + 2x = 3
subtract 13 from both sides of the equation
2x = -10
divide by 2 on both sides 
x = -5
5 0
2 years ago
Read 2 more answers
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